Record No,Q1,Q2,Q3,Q4_1,Q4_2,Q4_3,Q4_4,Q4_5,Q4_6,Q5,Q6,Q7,Q8_01,Q8_02,Q8_03,Q8_04,Q8_05,Q8_06,Q8_07,Q8_08,Q8_09,Q8_10,Q8_11,Q8_12,Q8_13,Q8_14,Q9,Q10,Q11,Q12,Q13,Q13_1,Q13_2,Q13_3,Q13_4,Q13_5,Q13_6,Q14_01,Q14_02,Q14_03,Q14_04,Q14_05,Q14_06,Q14_07,Q14_08,Q14_09,Q14_10,Q14_11,Q14_12,Q14_13,Q15_01,Q15_02,Q15_03,Q15_04,Q15_05,Q15_06,Q15_07,Q15_08,Q15_09,Q15_10,Q15_11,Q15_12,Q15_13,Q16,Q17,Q18,Q19,Q20,Q21_1,Q21_2,Q21_3,Q22_1,Q22_2,Q22_3,Q23,Q24,Q25,Q26,Q27,Q28,Q29_1,Q29_2,Q29_3,Q29_4,Q29_5,Q29_6,Q29_7,Q29_8 1,Interior and exterior,"They have their place, certain applications are good, but it's still the wild west","I think when the dust settles, there will be some good products and applications to use them",3,2,1,2,1,1,"DOE, manufacturers, Reps","Color, Color match, Binning, Warranty (must be 5+ years), quality of a manufacturer (they’ll follow through if there are problems), heat dissipation","That we have a good rep, a 5+ yr. warranty and a lighting manufactuer that is well established so that they will take care of problems,components,driver",5,4,5,4,4,4,3,3,5,5,5,4,3,3,"Dimmability, sparkle, contrast,",Try not to make it look too boring,"Low maintenance, low energy, dramatic tendencies",-,3,-,-,"Up lights, wall grazing, path lights, marker lights","Sometimes – bar / restaurants, cinema",When ever possible for low maintenance and energy,no,-1,-1,0,-1,-1,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,-1,-1,-1,0,-1,0,"Narrow beamspreads, long throw, color addative (instead of subtractive), sometimes smaller packaging. Lower maintenance","Heat, heat, heat. Driver locations and failures, color shifts in the phospheres, color consistency","A point source, not an ambient source",Reputable LED manufacturer in an reputable lighting manufacturer’s fixture,Medium. We’ve had a number of problems from a number of different manufacturers,Possibly to buy a percentage more than are needed in case of unforeseen damage to maintain the similar look,None come to mind,None come to mind,It depends on the application,It depends on the application,It depends on the application,"Wall washing either lighting up from a banquet or down a wall. Cove lighting, marker lights for hallways","Hospitality, Commercial, Retail, Municipal, High-end residential",US,2,2,"BFA, degree in interior design, worked for an MEP firm, LD for the past 20 years",-1,0,0,0,0,0,0,0 2,Yes. Many applications indoors and out.,Overhyped and too expensive,Questionable,1,1,1,1,1,1,"Trade shows, press, online",I need to test it. Most of the stuff out there is junk.,Does it perform as advertised? Does it perform the same after 1 month of continuous operation?,4,5,4,5,5,4,5,3,5,4,4,5,5,3,"Same as everywhere else. Light for task, light to create ambience","Balancing the aesthetic and quality desires against the realities of budget, energy and the environment.","They want it good, fast and cheap","which LED’s were used to light the back bar, base of the front bar, and horizon/cove lighting behind banquette seating. DO NOT PUBLISH THIS PHOTO it is copyrighted",3,-,-,Primarily specialty lighting and special effects,When someone wants color changing.,I prefer to avoid color changing which I consider cheesy design. See12,See 12. I also have used wallwashers and downlights,-1,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,0,-1,-1,0,0,-1,-1,0,-1,-1,"In the good ones, low power, small size",Most of them are junk,Get rid of the junk and get the price down,If they fit the need better than conventional lighting,Very confident because I vet the products fairly well,Binning,Why do this at all,Binning,Same as any other lighting goal,See above,See above,See 12,All,Many,1,3,36 years in architectural lighting design,-1,0,0,0,0,0,0,0 3,"Yes, exterior lighting, coves, undercabinet, decorative",I think they are one tool in a whole array of tools. They do not need to be used for every situation.,I think as the color improves and the efficiency improves and the cost comes down there will be more and more use of leds.,3,2,1,2,2,1,"Reps, shows, get samples, lighting magazines","Cost, efficiency, color rendering, color consistency, heat","The quality of their other products, the service from their reps, the quality of the led modules they are using, cost",3,4,4,4,4,4,4,4,5,5,5,4,4,5,Create an environment that is consistent with the vision of the Owner. Reduce energy use and heat and provide sustainable lighting.,"Clientelle, vision for the space, use, maintenance concerns, value, psychological and physiological comfort and interest",value,Refer to any year of the IALD awards,3,-,-,"Decorative, color change, cove, undercounter,","Yes – decorative, cove","Yes, undercounter, cove,","Yes, decorative, cove",-1,-1,0,0,-1,0,0,-1,0,-1,0,0,0,-1,0,0,-1,-1,-1,0,-1,-1,0,0,-1,0,"Long life, low maintenance","Cost, color, output. Submersion capability",Surveys that are way too long,Unclear question,As confident as I would feel using any product that has not got empirical data that is as sustained as the proposed lamp life that data suggests.,"Color temp consistency, output, the fact that it is not a point source","Cost, output","Cost, output",Quality lighting design,Quality lighting design,Quality lighting design,Refer to the IALD awards,All,All over the world,2,0,Architectural Engineering – 23 years experience,-1,0,0,0,0,0,0,0 4,"Yes, back lit coves and under counter lighting",It’s taking over for digital pourposes,It’s the future of lighting and displays,2,1,1,2,1,1,Sales reps,To complicated to answer in a survey,To complicated to answer in a survey,4,4,5,5,5,4,4,3,4,4,4,5,2,3,Create a welcoming profitable experience,Too many to list,Create a welcoming profitable experience,Las Vegas,3,-,-,"Backlighting, cove lighting",backlighting,coves,-,0,0,0,-1,-1,0,0,0,0,-1,0,-1,0,-1,0,0,0,-1,-1,-1,0,-1,0,0,-1,0,-,-,Heat management,-,-,-,-,-,-,-,-,-,Hospatality and shopping centers,"SE Asia, Middle East, US",1,2,-,-1,0,0,0,0,0,0,0 5,"Coffee shops, hotels, restaurants, retail, home applications",It is energy efficient and very environmental friendly,More high power warm white and cool white LEDs. More architectural applications,3,2,1,1,2,1,"Magazines, seminars, exhibitions","Efficiency, brightness, lifetime","Credibility of the company, guaranty, expertise",5,4,5,3,4,4,3,3,5,5,4,4,2,3,Stability in colour and lumen output,"Maintenance issues, stability of colours, proper colour mixing, dimming","No glare, pleasant environment, dimming capabilities, easy to use, control capabilities","Semiramis hotel, Athens",3,-,-,"Hotels, bars and restaurants",Concealed and decorative lighting,"Additive to the general lighting, highlight architectural features",No,-1,-1,-1,-1,-1,0,-1,-1,0,-1,0,0,-1,-1,-1,0,-1,-1,-1,-1,-1,-1,-1,0,-1,0,-,"Brightness, and colour instability",Low power consumption capabilities,"Colour stability, consumption, manufacturers credibility","Very, because it is new, environmental friendly, long lifetime, and easy of maintenace",Colour temperature,Capability of colour mixing,Stability in colour and different output depending on the colour,"Homogeneous outcome, beam angle, stability","Coherent colour changing, smoothness in colours",Colour stability,"Semiramis Hotel, Athens","Coffee shops, restaurants, retail shops",Greece,2,1,"Bachelor in Economics, MSc in Business Economics, MSc Light and Lighting",0,-1,0,0,0,0,0,0 6,"yes, in applications where saturated colour and controlo are required, We also use white LEDs in some exterior and architectural applications",I don’t understand the question.What “environment” are you asking about?,"Lots of poor applications that are not appropriate for the technology, continued slow improvement of the technology and cost",2,1,1,1,1,0,"Usual marketing info. Research on internet, talking to suppliers direct and at trade shows","The manufacturer must understand LEDs and answer technical questions relating to design life, operating temperature and demonstrate traceability of the LED compomnents used",understanding LEDs and no bullshit!,5,5,5,5,5,5,5,5,5,4,3,5,5,5,Create exciting comfortable spaces,"maintainability, controlability style","exciting comfortable space, no or minimal maintenance between refurbs, minimal energy use and cost next to nothing to buy and install",St Martins Lane Hotel,3,-,-,for colour for effect,for colour and controlability,"where they will be best choice, in tight locations",for colour,-1,-1,-1,-1,-1,0,-1,0,0,-1,-1,-1,-1,-1,-1,0,0,-1,-1,-1,-1,-1,-1,0,-1,-1,"low light output, small light source","colour consistency, efficiency, reliability","proper technical data, standards, reliable delivery",experince and review of working samples,Very confident as I havvetaken the effort to get the right expertise,colour consistency and colour appearance,"good colour mixing, wide colour gamut",colour consistency and appearance,matches design intent,matches design intent,matches esign intent,can’t think of any,all types,"UK Europe USA, Middle East",1,3,"10 years stage lighting, 20 years architectural lighting",-1,0,0,0,0,0,0,0 7,"Indirect lighting, cove lighting, work surfaces and counters, interior and exterior path lighting, under-cabinet lighting, in-cabinet lighting and over-cabinet lighting",It’s a great low energy consumer on a par with compact fluorescent with potentially longer life but without the disposal issues,"if deal with heat dissipation, drivers that will last as long as the LED, means of testing and can stabilize development then future is tremendous",3,1,1,3,1,1,"IALD, IES, SSL and other magazines, lighting manufacturer’s technical","Was it designed with LED as a source in mind or just adapted; how well does it dissipate heat, whether the driver is integral or remote, who manufactured the LED","Do they manufacture or just assemble, whose LED do they use, do they have their own in-house technical support, are they a quality manufacturer",5,4,5,4,4,4,3,3,4,5,4,4,3,4,"Functional way-finding -path, functional way-finding- signage, atmosphere, security, glare control","Ease of maintenance, control, safety, glare control, power and color stability","Intuitive control, security, predictability","Floor and pathway illumination, indirect general atmospheric lighting, direct specific task lighting",3,-,-,"Indirect cove, signage, pathway, feature lighting, water feature lighting, accent, back-lighting","Yes. Signage, feature and water feature","Yes. Wall wash, indirect cove, pathway",No. If I’m doing color I want control and use RGB,-1,-1,-1,0,-1,0,-1,-1,0,-1,-1,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,-1,-1,"Control, color stability, color customization, reduced maintenance, small envelope","Lack of long-term driver life, development is moving so fast, there will not be exact product available to match because of continued development",Codes are not keeping up to allow their use in certain apps,"Variety of factors: Manufacturer, design, availability of test data, whose LED is used","Very, with careful consideration","How is white generated, actual white color temperature (equivalant)",How is it controlled,N/A,Color stability over time,Control and color stability over time,N?A,-,"Estate-size residential, hospitality, commercial, landscape, streetscape",USA,1,3,18 years in Lighting Design following several years as president / general manager of a lighting showroom,-1,0,0,0,0,0,0,0 8,Mostly special affects but now using them in low ceiling applications as downlights 1st time,I am cautiously using it but only after in house mockups,It is not going away and will become more prominent after pricing comes in line,0,2,1,2,1,1,Through manufacturer reps,"Performance, company reputation","Performance, company reputation",5,5,5,5,5,3,4,4,5,5,3,4,4,4,Energy efficiency is now being dictated but without sacrificing dimming control and high end look,Operators lighting level criteria in their standards. What is their reputation for quality,End users only expect that the new hotels will look and feel like the ones they already love. If they become less warm and elegant they might go elsewhere,We have good photos on our web site – www.langlighting.com,3,-,-,"Currently for special affects, backlighting and possibly cove lighting",Possibly cove lighting in ballrooms if the client is open to it,Use occasionally. Probably to backlight a special material where access is limited,-,0,0,0,0,-1,0,0,-1,0,-1,0,-1,-1,-1,0,-1,0,-1,0,-1,0,-1,0,0,0,0,Lighting placed in areas with no accessibility or very little accessibility,Lumen output for interior applications. Accent lighting,Cost is a big one,In house mockups,When we use it we are confident in the application after much study,Binning of LED,Controllability,Do not use this,Color consistency and lumen output,Nothing comes to mind,Nothing comes to mind,None I have been involved with so I know of none to refer that have photos,No limits to type but typically not industrial or municipal,"US, Europe, Middle East",1,3,"Architect 10 yrs., Lighting Designer 15 years",-1,0,0,0,0,0,0,0 9,Linear Interior & Exterior applications,Sustainable,LED will play a greater role in its use as a light source,3,2,2,3,1,1,Through manufacturers,Efficacy,Durability of product,3,3,2,2,3,4,5,3,3,5,5,3,2,3,Lighting to increase patronage of potential customer base,Sustainability,Adequate illuminance and visual diversity to invigorate and attract,Nike Town in Oxford Street,3,-,-,Linear,Retail & Hospitality applications,"Yes, for Retail & Hospitality","Yes, for Retail & Hospitality",0,0,0,0,0,0,0,0,0,-1,0,0,0,0,-1,0,0,0,-1,0,0,0,0,0,0,0,Colour changing and lamp life,Inadequacies as a task lighting source,Heat sink extraction barriers,Reliability,"Confident, the quality of colour kinetics LEDs used on the London Eye is a testament to LEDs potential",Binning differences,Maintenance colour shift,Colour of the object of lighting intent,Adequacy of colour rendering,Adequacy of colour mixing,Contrast & Shadows,LEDs used on the London Eye,Retail & Hospitality,"UK, China, Singapore, Middle East, Europe",1,2,Electrical Electronic Engineer,0,0,0,0,0,0,-1,0 10,"Yes, facade lighting (Exterior) and displayed showcase and cove light (Interior)",It provides energy saving,More powerful and provides good colour rendering index,3,2,3,3,2,2,The update information of LED is provided by Philips Thailand,Photometric Data of each luminaire (light outoput),CRI and CCT,4,5,5,3,4,3,2,2,2,5,5,4,4,4,Welcome and Attractive,Lighting scene & Glare free,Small Budget,Provide attractive (variety scenes during periods a day) and welcome environment as well as energy saving while match owner’s budget,2,-,-,Linear light LED for covelight for interior and flood light (changing colour) for facade lighting,"Covelight and concealed in furniture in Bar, Restaurant, and Discotheque",Displayed downlight,Not Frequently use for Fix colour,-1,0,-1,-1,-1,0,0,-1,0,-1,-1,-1,-1,-1,-1,0,0,-1,-1,0,-1,-1,-1,0,-1,-1,Lamp Efficacy,"Couldn’t provide good colour rendering index and no stablility in light output and colour between each lamp in one luminaire, and cost",nothing,Protometric Data provided,I don’t have much confident using LED,"for majority halogen ‘s required since lighting output of downlight LED is not good enough. However, for covelight and concealed light is perfect",Smooth facing or changing and mixing colour,Colour output,"New lamp MR16 LED 7w (interior application) by Philips (GU10), Should develop lamp with to have appropriate and constant light output, match available fitting. Better develop reflector",-,-,See another attached I received from Philips I wanna do like that,"Hotels, Resorts, Museum, and Private Residences",Thailand and South East Asia,2,1,-,0,0,0,0,0,0,-1,0 11,"Yes, decorative lighting, colour changing application",Still need to be improved in general lighting or ambient lighting proposes,Impressive,2,1,2,2,1,1,"Manufacturer newsletters, colleagues",Consistence in colour temperature and colour rendering index,Use of LEDs source,3,3,4,2,3,4,3,2,5,4,3,4,4,4,"Relaxing, decorative, visual comfort and creative",Contrast between horizontal and vertical plane,Relaxing and visual comfort,"Saka No Hana (Restaurant), Home House (bar & club)",3,-,-,"Light cove details, Accent lighting only",RGB LEDs normally apply to feature wall or objects due to designer or architect request,"Yes, more often use warm white LEDs, such as ceiling light cove for accent lighting only","Yes, for accent lighting only. More often due to the interior design scheme",0,-1,0,-1,-1,0,0,0,0,-1,0,-1,0,-1,0,0,-1,0,-1,0,-1,0,-1,0,0,0,"Lamp life, small in size, and colour changing","Limited in its ability on colour rendering index, light output, and consistence in colour temperature",Its colour rendering ability,Its colour rendering index and consistence in colour temperature,"Very confident for accent lighting proposes, highlighting specific areas or surfaces and not too worry about showing material finishes and actual material colour","Consistence in colour temperature on individual LED, chooses of beam angle (Lens), and colour rendering index",Smooth colour changing ability,No comment,Better colour rendering index,Colour mixing,No comment,"Matrix lighting, Finsbury Square","Hotel, Yachts, and Restaurant","Europe, US, China",1,1,"Educated in both interior and lighting design, currently working as lighting designer",0,0,0,0,0,0,-1,0 12,"Yes, mostly for architectural details and colour changing installations",They are not yet as eco friendly as they’re being presented,It can only get better,3,2,1,2,2,1,"Relative press, research and manufacturers","It depends on the application. Generally it would be performance, engineering and price","Assessment of a sample, previous experience and price",4,5,5,5,5,4,5,5,4,3,4,3,5,4,Creating the desired mood,"Coordination with interior style/finishes/forms, avoid glare & discomfort, avoid excessive use of colour/controls, equipment integration",To be subconsciously seduced,"Molton Brown Spa, Killarney Bulgari Hotel, Bali",3,-,-,Integration to architectural details and colour changing,"Yes, mood setting, stimulation, architectural features, not functional",Tight details that other sources cannot fit,"Rarely, when you know you can get an RGB version, why settle for only one colour?",0,-1,0,-1,-1,0,-1,0,0,-1,0,-1,-1,-1,0,0,-1,-1,-1,-1,-1,0,-1,0,-1,-1,"Lighting animation and human interaction, integrated installations with low maintenance",Unreliable technical data and poor output,-,Depending on the installation requirements,"As confident as I can, given the data available",Colour rendering,Colour consistency and source configuration in the luminaire,Colour consistency,-,-,-,The LED installation in the observation deck of the top-floor of the Rockefeller Center,All types of architectural lighting studies,Greece and UK,2,1,Interior Designer,0,0,0,0,0,0,-1,0 13,"Exterior lighting, Cove lighting",It’s evolving very fast and taking over,They will develop even more and be used in interiors extensively,3,2,1,3,1,1,"From the manufacturers brochures, visits, demonstrations and publications","Colour temperature, efficiency, origin (manufacturer i.e. Phililps)",Years of experience and research,4,4,5,3,4,4,2,3,5,5,5,5,3,4,"mood’ or low – key lighting, also based on quick impressions so installations and bright colours are usually employed but that depends also on the style and identity of the bar or restaurant",-,"Mood, and impression, end users are generally ignorant of the potentials of lighting, They only notice problems when lighting presents quantitative issues (light, glare)",-,2,-,-,Cove lighting and lighting integrated into the bars or furniture. Backlighting,"No, only monochromatic lighting",Yes almost everywhere especially the warm white version,"In pools, exterior lighting usually simple colours closer to natural, like blue or amber not red or green",-1,0,-1,-1,-1,0,0,0,0,-1,0,-1,-1,-1,-1,-1,0,-1,0,-1,0,-1,-1,0,0,-1,To integrate light sources in small confined areas,The CCT and the Colour Rendering are major problems,The limitations referred to above,Manufacturer reputation and variety of choices,Very confident because they are widely available and already used in built projects,The CRI and CCT,Users tend to employ fast colour changing that ruins the sophistication and design of the projects,The lamp efficiency,-,-,-,REISS flagship store in London,Residential mostly,Greece and UK,2,2,Architect engineer,-1,0,0,0,0,0,0,0 14,"LEDS for architectural accent, path lighting, illumination of small surfaces and limited exterior flood light applications","What do you mean? They can be used well, but most are not – but then most lighting is badly done",LEDs will continue to expand into broader areas. Improving quality of light will progressively make them suitable for ambient lighting of human spaces,2,1,1,1,1,1,"Research, community forums, sales reps","Quality of light, beam control, energy efficiency, thermal management","Quality of information provided, quality of product",5,5,5,5,5,5,5,0,5,5,5,5,5,5,"Quality of user experience, function and safety","Safety, quality of user experience, function, maintainability",Maintainability and safety,-,3,-,-,As expressed above,"Not much, boring, been done",As expressed above,"Yes, more efficient than generating white light by any means and filtering",-1,-1,-1,-1,-1,-1,-1,0,0,-1,-1,-1,-1,-1,-1,0,-1,-1,-1,-1,-1,-1,-1,0,-1,-1,Bite size chunks of highly controllable light,"Thermal problems, color problems, manufacturing consistency problems, etc",As per 17,Due diligence,"Confident, per 19","Color temperature and rendition, variability, replaceability",Taste,Appropriateness of colour,Depends on the project,Depends on the project,Depends on the project,-,"Leisure (more often called hospitality), artwork, commercial","Thirty countries + in Europe, Asia, Australia, North and South America",1,1,-,-1,0,0,0,0,0,0,0 15,"Display ltg, downlighting mostly residential, cove ltg, exterior bldg display ltg","Sometimes the right product, still costly","I think it will become mainstream for general downlighting, cove and display ltg",3,1,1,3,2,1,"LED and fixture manufacturer’s, ltg shows","Lumen output, warranty, color","Warranty, LED TYPE",5,5,5,4,5,5,4,3,5,5,3,5,3,4,"INTERESTING AFFECT, ENERGY EFFICIENT","CONTROLLABILITY, COLOR","LIFE, COLOR CONSISTENCY, WARRANTY","RGB ACCENT IN BARS, COVES, WALLS ETC",2,-,-,"RGB APPLICATIONS, DISPLAY","COVES, WALLS, BARS",DISPLAY LED MR16,DON’T USE,-1,0,-1,-1,-1,-1,-1,-1,0,-1,-1,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,0,0,"LONGER LIFE, RGB, WATTAGE","COLOR CONSISTENCY, LIFE DUE TO HEAT,COST",-,DEPENDS ON THE APPLICATION,CONFIDENT FOR DISPLAY BUT WATCH GENERAL LTG DUE TO LUMEN OUTPUT,NEEDS TO BE CONSISTENT FOR USE IN COVES AND REPLACEMENT IN FUTURE,NEEDS TO BE EASILY CONTROLLED,AGAIN CONSISTENCY AND INCREASE IN LUMEN OUTPUT,CONSISTENT COLOR,-,-,-,ALL TYPES,USA,0,2,"BSEE, AILD, LC, LEED AP",-1,0,0,0,-1,0,0,0 16,"Yes. Step lights, undercabinet, cove, specialty areas, exit lights, etc","It has it’s place, but it not yet ready to replace fluorescent",Hopeful,3,2,1,2,1,1,"Constant email, magazine articles, manuf. Reps, etc","Company reliability, performance, energy savings compared to fluorescent. Color",Company reliability,5,5,5,4,5,4,4,3,5,5,5,5,4,4,"Aesthetics, energy savings, dimming",Same as everywhere else,"Ease of maintenance, longevity",Look in the magazines,2,-,-,"Bars, backlighting, toilets, in floor lighting, picture lights",Same as above,White is used often. Color is getting overplayed,vision,-1,-1,0,0,0,0,-1,-1,0,-1,-1,0,-1,-1,-1,0,-1,0,-1,-1,-1,-1,-1,0,-1,-1,"Small size, low wattage","Color consistency, ability to verify performance, to produce enough lumens, often takes too match wattage. Too costly","Color consistency, ability to verify performance, to produce enough lumens, often takes too match wattage. Too costly",Based on design requriements,"In limited applications, not comfortable for general downlighting or office lighting",Very important,Already available,Not necessary,"Good color, more lumens per watt",-,-,-,"All kinds, schools, offices, spas, industrial, healthcare, hotel, residential, banks, retail",USA,2,3,28 years in lighting design for architecture,0,0,0,0,0,0,0,-1 17,All range of situations,"Taking charge of the all kind of lighting design decisions, unfortunately",Things are going to be changed. A new technology is going to come up,2,1,1,1,1,1,"Seminares, and internet",Performance./ efficiency and design,Knowledge of the technology and previous experience,3,4,5,5,5,4,5,3,5,5,5,4,4,4,-,-,-,-,-,-,-,-,-,-,-,0,0,0,-1,-1,0,0,0,0,-1,0,-1,0,-1,0,0,0,0,0,-1,0,0,0,0,0,0,-,Quality of lighting,knowledge,The right answer to the specific needs of the project,Not 100% confident due to the lack of info and proved results,Very much,Not so relevant for us,interesting,constancy,Management and control,meaning,-,"Outdoors,mainly","Portugal, Mexico, Greece, UK",2,3,architecture,-1,0,0,0,0,0,0,0 18,"coloured applications or as marker lights, colour changing effects, small scale applications that require functional light i.e. showcases.","LEDs have been hyped up too much and have become popular because of the “Energy Efficiency” movement, over used at the moment","be higher powered LEDs, LEDs need to be modulated so that when they do eventually fail, only the LEDs are changed and not a whole luminaire, better optical control",3,2,1,2,1,1,"Manufacturers coming to visit our office and presenting to us. Some seminars and shows, but more focused sessions are the best way","Light Output, colour temperature, optical control and glare","Reputation – not just as a manufacturer, but existing installations",4,5,5,4,4,3,4,3,5,5,5,4,4,3,"Client’s brief and the general atmosphere created by the architecture and interior design. The lighting has the ability to be flexible for different activities and times of day, inviting atmosphere","Using light appropriately and not unnecessarily, respond to its surroundings, scheme is applied to the space and not just a selection of generic lighting techniques","ability to be able to tweak and control their lighting scheme, lighting scheme is maintenance free with regards to lighting control or a user friendly interface for the lighting control","Molton Brown Spa, Killarney The Ice Bar Sake No Hana Haymarket Hotel",1,"For functional light we normally use low voltage tungsten halogen, linear and compact fluorescent. We may use LEDs for decorative elements","Lack of glare control, availability of LEDs with actual comparable light outputs and colour consistency for Warm White LEDs",-,-,-,-,0,0,0,-1,0,-1,-1,0,0,-1,-1,-1,-1,-1,-1,0,-1,-1,-1,0,0,-1,-1,0,0,0,"Low energy, small luminaires, good range of saturated colours, less forward heat","Colour consistency, availability of warm white, quality of light, high costs","The luminaires designed for LEDs that are saturating the market, tend to be existing luminaires adapted for LEDs, which do not offer the same qualities as existing light sources","Availability of warm white, honest proven statistics and costs","confident about using coloured LEDs for more decorative applications, but have reservations for using them in functional applications for the reasons above","Optics, colour consistency and rendering","Optics, colour mixing and control",Control and optics,Good colour rendering and low energy,Many possibilities and dynamics,Good colour saturation,"Hotels, Restaurants, Bars, Exterior, Landscape, Public Buildings, Offices, Retail, Museums, Galleries, Art, Historical Buildings, Daylight and Residential","Hotels, Restaurants, Bars, Exterior, Landscape, Public Buildings, Offices, Retail, Museums, Galleries, Art, Historical Buildings, Daylight and Residential","Many countries in Europe, the Middle East (UAE), Japan",1,1,"Joined dpa as a Junior and have worked for 4 years learning lighting design on the job and obtaining educational certificates, such as the LIF Course. No qualifications in lighting design.",-1,0,0,0,0,0,0,0 19,"Difficult to get to kind of area. Low light levels are required, but don’t want to use incandescent lamp kind of application",???,It continues to be developed and can’t imagine what is like,2,1,1,2,1,1,"Magazine, Conference, Manufacturer’s presentation",Reliable performance,Can they stand for their products? Are they going to be responsible near future?,3,5,4,4,5,4,5,2,5,5,3,5,5,5,Create kind of environment that you want to be when you want to get a way from busy life,Who is your end user? Who is the target? What kind of environment does your client want to create?,Create what they want within their budget,It should be defined with your clients and your design team,3,-,-,Colors and decorative features,For color mixing for decorative proposes,When we don’t have big space or difficult to get to,"If color change is not desired, but still want to add colors",0,0,0,-1,-1,0,-1,0,0,-1,0,0,0,-1,-1,0,0,0,-1,-1,0,0,-1,0,-1,0,Colour changing,Inconsistency with performance and product data,?,"Based on photometric, fixture quality",Not very confident. Just hope it does what clamed to do for a log time,GOOD CRI. Reliable product,"Easy control, good color mixing. Reliable product",Reliable product,It is really white,Good color appropriate for the project,Good color and same color for long time,?,Mostly commercial,USA some in Asia,2,2,"Architecture, Interior design, architectural lighting",-1,0,0,0,0,0,0,0 20,"Decorative lighting interior and exterior, accent and indication lighting, dynamic lighting","Cons: Colour pollution, no high colour rendering (museums), efforts to use in street lighting, expensive. Pros:very small dimensions, saturated colours, low power consumption, dynamic lighting-control","Should be focused on the quality of light, stabilising colour, combining leds+lens+photometry for controlling the light beam and producing photometric results, Cri, CCT, High power, OLEDs",3,2,1,1,2,1,"Light magazines and research papers, suppliers","Reliability, colour consistency, light output, maintenance, cost","Reliability, overall research in led field, origin of leds",4,3,4,4,5,5,4,4,5,4,4,5,5,4,"Create ambiance, Merge with architecture, Create variety and interest, low maintenance","Integration with architecture, avoidance of glare, flexibility, low maintenance, interest","Interest, Flexibility, wow effects, low cost, low power consumption","Schemes from Yann Kersale, Licht Kunst Licht, Speirs and Major",3,-,-,"Accent, indication, ambiance, integrated to furniture","Yes, variety-colour scenes, mood control, accent","Minimal spaces, ambiance, furniture lighting, backlighting, cool-warm white effects","For accent, indication, ambiance, corporate identity, when scheme is based on colour",0,0,0,-1,-1,-1,0,0,0,-1,-1,-1,-1,-1,0,0,-1,-1,-1,-1,-1,-1,-1,0,-1,0,"efficiency, low power consumption, miniature size, colour combinations, low maintenance","Temperature and heat dissipation, colour rendering, integration to luminaire design, beam control, lack of colour consistency",none,"Always depends on the demands of the projects. Most significant are the quality, reliability and cost of the product","Very confident, since I know the reasons for each application","Colour consistency, CCT, output","Control availability, if it’s in-one-chip or not, uniform colour mixing","Saturation (especially the reds), consistency","integration, colour consistency","Variety, accent, mood change, play, dynamic lighting","Accent, mood, orientation",from practices mentioned above,All kinds of architectural lighting,"UK, Greece",2,2,"Architect Engineer -Aristotle University Thessaloniki Greece, MSc in Light and Lighting-Bartlett School, UCL",-1,0,0,0,0,0,0,0 21,"Yes, ambient lighting",Technology has to be developed to be suitable as energy saving sources,"In the following years, there will be advances regarding technology and quantity of light, quality of light, is difficult to say",2,1,1,3,1,1,"News for manufacturers, fairs, presentations",Color temperature. Output,"Saturation, uniformity of color",4,4,4,4,4,3,3,3,4,4,4,4,4,4,Create appropriate ambiances in relation to the interior or architecture concept,The end user needs,Good atmosphere,-,3,-,-,Color changing effects,Color changing effects,Facade lighting and big surface lighting,walleashing,-1,0,0,0,-1,0,-1,0,0,0,0,0,-1,-1,0,0,0,-1,-1,-1,0,0,0,0,0,0,Quantity of light,White color production - uniform,"Bad quality of light, sad light, dead light",Manufacturers advice and experience,Not very confident,Could be pink,saturation,saturation,unoformity,saturation,saturation,-,"Leisure, education, housing","Germany, Ecuador, UAE",2,2,"Architect, Master in lighting design",-1,0,0,0,0,0,0,0 22,"Yes, in both lighting and video applications",It’s getting better everyday,"As a light source, it will change everything. From a video standpoint there is always newer technology",3,2,1,2,1,2,"Trade Magazines, Internet, Trade shows, word of mouth",Output and energy consumption,"Quality of product, ease of use, output and power consumption",4,5,5,3,5,5,3,5,5,4,3,3,4,5,"Creativity, power cost savings","Fixture placement and surroundings, budget, over all purpose","Cost, energy savings","Too many to list, but keeping the clients objectives in mind and keeping to budget",2,-,-,Creating atmospheres and decorative lighting,Creating atmospheres and decorative lighting,Not currently,Basically for accent lighting,-1,0,0,-1,0,0,-1,0,-1,0,-1,0,-1,-1,-1,0,-1,-1,-1,-1,0,0,-1,0,-1,0,Extremely flexible in terms of sizes and applications,"lumen output, even beam disbursement and cost",Basically cost and newer technologies as they become available,Budget mainly,I have been using LED technology for over 7 years and have had very little problems,"Application of use, color temperature and existing lighting in area",Intensity and use,Intensity and use,General illumination of area or product,Applying it tastefully and not over doing it,Applying it tastefully and not over doing it,Take a look at live design magazine or PLSN and some of the permanent installations,"Large live events (ie corporate events, concerts, theatre) , architectural lighting",All over the world,1,2,"Degree in technical theatre and design, concert touring, over 12 years professionally designing",-1,0,0,0,0,0,-1,0 23,I have specified it in almost all lighting design projects over the past few years. Typically in task or display lighting,I think it is an overated technology that still has far to go,"I am looking forward to further development of OLED’s (Organic LEDs). The fact that LED’s are point sources, does not make them usable in many general lighting applications",3,2,1,1,1,1,"National conferences, trade journals, role on national committees involving Innovation and Progress in the Industry",Can it truly perform from a lujmen output and is the color/quality acceptable,"If the product can perform, and if the product can be replaced during the life-cycle of the building, which could be 20-30 years",5,5,5,5,5,5,3,3,5,5,5,5,3,5,"The major objective is illuminating for the tasks in that space, then aesthetics and maintenance follow. If a design can’t be maintained after its install, it is worthless",-,-,-,3,-,-,"Task, display and signage",If desired for an effect,Gernal illumination of tasks,For an effect if desired,0,0,0,0,-1,-1,0,0,0,-1,0,0,-1,-1,0,0,-1,-1,-1,0,0,-1,0,0,0,0,"LED’s don’t really do more than any other light source, other than offer a smaller size. FL, HPS and MH can vbe just as efficient",Color!!!!! And inability to standardize,Color and accurate specification information,"Color, controllability","Confident in the task and display area, not confident in general lighting applications",White color is often muddy and cloudy- I often find it objectionable,"RGB is a toy, an effect. It can be very cool, but is a novelty",-,CRI and Kelvvin temps that actually mean something,-,-,-,"Lighting Design for Universities, Healthcare, Hospitalities, High End Residential, Liturgical, Retail","USA, Switzerland, Saudi Arabia, Lebanon",2,2,"Originally trained as a theatrical lighting designer, Director of Lighting Design, member IALD & IES",-1,0,0,0,0,0,0,0 24,"Yes. LED luminaires, concealed lighting to shelves, steps etc",Efficient in terms of energy saving,"Will be improved. However, not sure to what point",3,1,1,2,1,1,Information given by various manufactures and other resources (ex. lighting technology forums & conferences),"Colour temperature, power (wattage), colour consistency, appearance and generally guaranteed operation",Reliability & information provided,4,4,5,4,4,5,3,3,5,5,5,5,4,4,"Flexibility, good appearance, low energy consumption","Ambiance, comfort & safety, orientation, energy efficiency","Easy to control - guidelines provided, maintenance, comfort, attract & satisfy visitors visitors",-,3,-,-,Conceaeled linear lighting to reception desks & furniture in general,"Facade lighting & internally, colour changing effects to ceiling / wall slots, shelves and furniture etc",Concelaed linear lighting when warm white is not desired or crucial,Indication & sign lighting,0,0,0,-1,-1,0,-1,0,0,-1,0,0,-1,-1,0,0,0,-1,0,-1,0,-1,-1,-1,-1,0,-,White light colour temperature & power,Limited potential perhaps,"Based on the technical specifications (CCT, wattage, control) and appearance of the luminaire",Not very confident when it comes to warm white colour lighting effects,The white colour temperature variations & consistency,-,-,To achieve the warm white effect when using LEDs instead of a halogen or incandescent light source. Energy efficiency,-,-,-,"Private residences (interior & exterior lighting), hotels, spa, offices",London & Greece,2,2,Interior designer & lighting consultant,0,0,0,0,0,0,0,-1 25,"Display, backlight, facade light, interior and exterior, pixel panels for vide projection","Scarce, not enough, but is good at the same time as more research needs to be done on the interaction with human psychology (for pixel videos) and how it interacts with nervous system, etc","Is great, walls ceilings and surfaces will be embedded with LEDs, people psychology, cognition, physiology, must be studied, based in profound knowledge of human needs",2,2,1,2,1,1,"Sale reps, exhibit shows, trade magazines, manufacturers advertising, project awards","Optics, amiability or adjustability, glare protection, mixing of the array of beams, mounting detail, wet location use, wiring as daisy chain not as star pattern, and other","Expertise of manufacturer in LEDs, what is their personel, what is their R & D, they may be very good in conventional fixtures and poor in LED, I rather select a Manufacturer who specialized in LEDs",3,4,3,2,2,4,3,3,4,3,0,0,0,0,"Aesthetically pleasing environment, relaxed and calm and sometimes with brief or small spikes of excitement","Focus on people and on emotions on the spirit of the place, not technology but people is the starting point, what the people expect, what will make people feel good and then what the place feels like","Simplicity and pleasantness, relaxed environment, it’s a get away from the busy world","Views with distance depth, high ceilings and multi-levels, richness, Connectedness",1,"Inc whenever possible, warm, soft, gentle, low speed of photons, relaxed","Cost, complications of drivers, how far as distance, how many units as power, how to program it, how the contractor to install it, teach the end user, only believe Mfr info on control & lumen output",-,-,-,-,-1,0,0,-1,-1,0,0,0,0,-1,-1,-1,-1,-1,0,0,-1,-1,0,-1,0,-1,0,0,-1,-1,Flexibility of controls and visual images,"Cost and the complexity of the process, from testing mock-ups to all the rest, overstated info","LED Mfr must find their voice, they try to make LEDs work in reflectors and fixtures like conventional lamps, but that’s not who LEDs are. LEDs must become authentic","By testing and mock-up, hands on, To see and test mock up the product","Confident, because I understand LED capabilities and limitations","Don’t expect uniformity (and that’s good, perfection is cool machine made, humans are imperfect)","Don’t expect to mix and have good white color, always use RGB with whites","Too heavy, need white to mix with","Goal should be to recreate glow ceilings and skylights with natural light, only coming form white LEDs, also creating a change from cool to warm and vice versa white light, changes with time","Always use with white light mix, otherwise is too heavy too artificial","You need to mix with others, wher in nature you have a single color, you need richness",Can’t think of,"Urban, hospitals, museums, exterior facades, corporate business",All USA,2,3,"Architect and Lighting Designer, lives/ works in Us since 1991",0,0,-1,0,0,0,-1,0 26,"Linear and spotlights. Lighting retail, residential spaces","Brilliant for certain applications, not so great for others","Becoming more mainstream, Being used as a working light, not just accents and indicator type luminaires",3,2,1,3,2,1,We manufacturers visiting us,"Price, colour temperature, beam","Price, reliability, service thay provide. Quality of product",4,4,4,3,4,4,4,4,4,4,3,4,5,3,"To create a mood, whatever that be, something to compliament the brand","Price, Does it fit with company ethos, making sure the client is happy",To create the right mood to match the environment,"Nike town London (we did it!) Abercrombie and fitch, Armani tokyo",3,-,-,"Accents, display cases",-,To replace halogen sources,-,0,-1,0,-1,0,0,-1,0,0,-1,0,-1,0,0,-1,-1,0,-1,-1,0,0,-1,-1,0,-1,-1,"Endless really, they are brilliant in the right area","Colour temperature, Warm wwhite is a problem","Colour temperature, Warm wwhite is a problem","Performance, price, availability, ease of getting samples","Very, for certain applications thay are the best source","Colour temperature, lumen output",What is going to power it? How,"Colour temp, is it to intense",Clean even light,Colour mix,Colour intensity,-,"Residential, retail",-,1,1,-,-1,0,0,0,0,0,0,0 27,"Yes, tasklights, steplights, RGB architainment",Be careful,Most R&D money going into it will someday yield,3,1,1,2,2,1,"Onslaught of unavoidable marketing, www.lrc.rpi.edu","Cost, performance","UL listing, track record, heat management, price",5,5,5,5,5,5,5,4,5,5,5,5,5,5,Dazzle the client into spending money,Budget and goals,"Simplicity of operation, conspicuity","There are many, whatever draws crowds",3,-,-,"Where applicable, long life, hard to reach","Where applicable, long life, hard to reach","Where applicable, long life, hard to reach","Where applicable, long life, hard to reach",0,0,0,-1,-1,0,-1,0,0,-1,0,-1,-1,-1,0,0,0,-1,0,-1,-1,-1,-1,0,-1,-1,"Long life, narrow beam, saturated colours, colour mixing","Heat management, light output, colour constancy",Price,In many ways,Semi confident in nascent product,"Price, colur constancy","Price, colur constancy","Price, colur constancy","CRI, CCT, outperform ceramic metal halide, dim to ""warm"" like incandescents",Kee on trucking,-,"There are many, whatever draws crowds",All sorts,Several,0,2,Architecture and lighting design,-1,0,0,0,0,0,0,0 28,"Small… step lights, cove lighting, special effects","Small… step lights, cove lighting, special effects. See the LED PDF on our website www.illuminart.net",it will be used in more applications to replace older lighting technologies,3,1,1,2,1,1,"The US Department of Energy and IALD education programs, NOT from sales people",See the LED PDF at www.illuminart.net,See the LED PDF at www.illuminart.net,2,4,4,4,5,4,4,2,4,4,4,5,3,3,Meeting the goals and objectives of the owner and project team. See LED PDF,"Good communication early in the design process, creative solutions, managing the specs",Lighting should be the ‘silent design aid’ to compliment the interior. Daylighting is part of this,The Starwood Hotels “Lighting Design Guide”,3,-,-,See above,-,-,-,0,0,0,0,0,0,0,0,0,-1,-1,0,0,-1,0,0,0,-1,0,0,-1,0,-1,0,-1,0,"Small format, low connected load, efficiency, colour changing, low heat, No UV, long life, reduced maintenance, vibration resistant, cold temperature operation, daisy chain of fixtures","Definition (lamp or system), Standardization of data, guidelines, truth in advertising, false expectations, Maintenance & contract issues, colour, cost and ROI","Rapid pace of change of LEDs, parts availability, specifiers risk and potential long term warranty liability","Carefully survey product samples and do mockups, do not rely only on published product info, establish warranty solutions, specify reputable manufacturers","Great for some applications but cautious for other, make sure there is training for future programming or maintenance","CCT, thermal management, lifetime (lumen depreciation) www.netl.doe.gove/ssl/comm_testing.htm",-,-,"CCT, thermal management, lifetime (lumen depreciation) www.netl.doe.gove/ssl/comm_testing.htm",-,-,Casinos and other projects where they are not ‘over used’,"Commercial, residential, retail, hotels, theme parks, casinos, street scapes",USA,1,3,On the illuminart website,-1,0,0,0,0,0,0,0 29,Fountain & environmental illumination,"Energy saving, easy color-mixing","Farther projection, lower temp",3,2,1,2,3,1,"Internet surfing, exhibition","Client needs, performance","Company reputation, their case studies",4,3,3,4,3,4,2,3,2,2,2,3,4,3,"Colorful, Calm, Mystic , Amazing","The clients’ needs, combination and conceal","Amazing, Attractive, Colorful",-,3,-,-,Fountain ? Show,Fountain – underwater (IP68) availability,Fountain - Brightness,"NO , except white",-1,-1,0,-1,-1,0,0,0,0,0,0,-1,-1,-1,-1,-1,0,-1,0,0,0,0,0,0,0,-1,"Compact, Concealment","Farther distance, High temp",Projection Distance,Compare and Study a lot,"Very, cause most LED fixtures have similar functions",Color Temp,"Brightness, color consistency",Brightness,Brightness,color consistency,Brightness,-,Fountain and Show,"Singapore, Taiwan, China",1,2,Graduated from National Institute of Fine Arts,-1,0,0,0,0,0,0,0 30,As “effects” needing colour and kinetic effects,It is still a very new technology and needs to be used with care,It will become a major light source,2,1,1,1,1,1,From light fitting manufactures and LED manufacturers,"Quality of light, life",Good understanding of the limitations of LEDs,5,5,5,5,5,5,4,4,5,5,5,2,3,3,Create drama and excitement,"Aesthetics, maintainability cost",Low maintenance easy to maintain," Guiesspire Arnaldo and Sons restaurant, melbourne",3,-,-,"Linear, colour changing and white as well as sparkle fittings",Special effects,Hard to get at areas for maintenance and exterior,Highlights in special areas,0,-1,-1,-1,-1,0,-1,-1,0,-1,-1,-1,-1,-1,-1,0,0,-1,-1,-1,0,-1,-1,0,-1,-1,Bright and low energy and small,Colour consistency and consistant light output as well as heat issues,Heat and consistency of product,carefully,Undertake research in the limitations is essential,Constant product,Reliable product,Reliable product,-,-,-,-,Leasure commercial museums andf galeris and lansdcape,"Australai, SE Asia, UK Mauritius, japan, USA",1,3,-,-1,0,0,0,0,0,0,0 31,Yes. Indoor and outdoor,"It’s a source, like incandescent and fluorescent",(hopefully) brighter and more consistent color; cheaper costs,3,2,1,2,2,1,"We learn mostly from manufacturers reps, product fairs and sample demonstrations","Same as other luminaires- performance. quality, dependability, ease of maintenance, price","Proven track record; well-documented data (photometrci testing, etc)",5,5,5,5,5,5,4,4,4,5,5,5,5,5,Objectives of lighting are the same in all applications. Read McCandless,Ease of maintenance,"If the end user is the hotel chain, they want fabulous design for no money allocated; if the end user is a guest, they want the same things everyone wants- good lighting!",The St. Regis in NY. The Venetian in Las Vegas,3,-,-,LEDs are great for backlighting of translucent materials. Also any color-changing. Also small steplights in guest rooms.,Color-changing coves or wallwashing of feature walls,Exterior floodlighting and uplighting (because they are low-maintenance and cold-tolerant),Steplights or marker lights for decorative or theming purposes,-1,0,-1,-1,-1,0,-1,-1,0,-1,0,-1,-1,-1,-1,-1,0,-1,-1,0,-1,-1,-1,0,-1,0,"Cool running output, long life, saturated colors and color blending","Heat, where to put the drivers, complicated control.power supply, lack of consistency, costs","Heat, limit to output of individual LEDs without bulk, difficulty of consistency","Same as other luminaires- performance. Quality, dependability, ease of maintenance, price,Proven track record; well-documented data (photometrci testing, etc)","Fairly confident, I don’tuse it unless I’m pretty sure.",Only use in indirect or well-lensed fittings if lighting humans,White from LED can still look pretty weird. Use RGB for color applications only,Same as conventional sources: be careful not to use saturated colors in food areas,Lighting goals do not change with the source,Lighting goals do not change with the source,Lighting goals do not change with the source,Well…all of mine,"Commercial; leisure, office and retail","US, Argentina, Brazil, Portugal, Kuwait",2,3,Lighting Design,-1,0,0,0,0,0,0,0 32,"Decorative, colour changing, large screens",necessary,pale,3,2,2,1,1,1,"Postgraduate Studies, Manufacturers","Durability, efficiency, size, versatility (RGB) (ABW) addressing","After Sales Service, Flexibility, Customization, Indoors and Outdoors range",5,5,5,4,4,5,5,5,4,4,4,5,5,4,"Decorative, changing, colorful","Cost, maintenance, flexibility, customization, color changing",cost,-,3,-,-,decorative,"Yes, in all functions, create dynamic atmosphere",Rarely,"Yes, in all functions, create relaxing atmosphere",0,-1,0,-1,-1,0,0,0,0,-1,-1,-1,-1,-1,-1,0,0,-1,-1,-1,0,-1,-1,0,-1,-1,"Small size, colour, colour change","Colour rendering, poor white light, cct incosistency","Size, heat dissipation, white colour cct consistency","Cost, after sales service, full range availability","Little, unavailable long lasting data",Rarely used,"Addressing, flexibility","Flexibility, efficiency","Cct concictency, warm colours",RGB in one chip,"Efficiency, colour concistency",-,"Indoors and Outdoors, Architecture and Lanscape, Single Objects","UK, Greece",1,3,"Architect, MSc, PhD in Lighting",-1,0,-1,0,0,0,0,0 33,"Yes, for exterior and decorative applications, emergency lighting","They are not used as much as they should, their application is very important as they contribute to lower energy consumptions and thus, the benefits to the environment are important","Brighter LEDs,OLEDs",3,2,2,3,2,1,From companies’ catalogues in the internet and from catalogues that companies send to me (LEDs and LEDs luminaires). From personal search in the internet and from exhibitions (developments),Flux and distribution of the light,I make sure that is a well-known company that guaranties the product,5,5,4,4,4,5,5,4,5,5,4,5,5,5,"To create a warm and friendly atmosphere, to create a safe environment for the users","Safety, multiple scenarios for different needs and occasions","They want the lighting design to enhance the interior design, create a warm environment and they expect the lighting system to be easily controlled and maintained","Puerto America Hotel, Barcelona",2,-,-,"Exterior, display and emergency, coloured lights for specific applications",For decorative applications and exterior,"General lighting, display and exterior",No,0,-1,-1,-1,-1,0,-1,0,0,0,0,-1,-1,-1,-1,-1,0,-1,-1,0,-1,0,0,0,-1,-1,"Long life, low energy consumption, low working temperature",They could have greater lumen outputs,Cost,"From examining their capabilities (distribution, flux, colour) according to the application","Not much, because usually companies do not provide sufficient information",Warm white colour is usually preferred by end users,Control,Light intensity of each lamp,-,-,-,-,"Leisure, exterior (parks,roads),residential",Greece,2,2,"Architect, lighting designer",0,0,-1,0,0,0,0,0 34,"Yes. projects that have the budget and require to be energy efficient to some level. Usually for facades/exterior/landscape and water features, or for lighting integrated into furniture","LED has progressed rapidly, but I don’t think it can replace halogen to create that kind of sparkle and mood, but very useful product as the fittings are small and usually have a high IP rating",LEDs will progress and develop so that colours are more stable. as more high power LEDs develop there will be a wider range of uses. opportunities to replace traditional lamp sources to be explored,2,1,1,2,3,1,From manufacturers usually. Sometimes from the internet too,"Stability of colour (especially white), distribution, size","Reputation, quality of working samples shown",4,4,5,4,4,3,3,3,4,5,3,3,3,4,To create an appropriate ambience for visitors to remember their visit,"Control capabilities, energy efficiency, maintenance issues","Energy efficient, colours similar to traditional lamp sources, low maintenance","Don’t know enough, sorry",3,-,-,"Hotels and restaurant-bars, water features","Sometimes – facades, clubs – for changing of mood/setting","Yes – cove lighting, concealed lighting (small size, low maintenance)",No,0,0,-1,-1,0,0,-1,0,0,-1,0,-1,-1,-1,0,0,0,-1,0,0,0,-1,0,0,-1,0,"Low voltage, small sizes, low maintenance, long liftspan",Colours (Whites) not very consistent,"Costs, colours",Reliable brand,I am only confident with manufacturers who have a proven good track record,Should look consistent,RGB should mix well,Not sure…., Mood & colour created should match that created from traditional sources,Features are highlighted with colour change that also helps to change the mood when necessary,Colour applied to be appropriate to the application,"Kew Garden Bridge, Bridge of Aspiration (London Ballet School)","Educational, hospitality, urban planning","London, Singapore",1,1,Architecture and architectural lighting design,0,0,0,0,0,0,-1,0 35,I use LED most of the times for facade lighting and spotlighting,It seems to be a technological advancement especially in lighting design but Oleds I think will make a big difference in architecture as well,Oleds and maybe the progress of the LEds would be resolving some of their disadvantages,1,1,2,2,1,1,Lighting conferences and exhibitions,"Fitting appearance according to the architectural idea, price, life expectancy, wattage, colour rendering",To be a reliable manufacturer – to have examples of their work – to be ready to solve any problems and provide analytical information for their use and samples,3,5,5,3,4,5,5,4,5,5,5,5,5,5,"Mood, atmosphere, stability, capabilities in colour changes and applying different lighting schemes through the same lighting scheme, control, cheap –easy to change","all about emotions and mood creation, aim mostly towards that direction, than illuminance levels, Lighting by computer that don’t consider human factor have nothing to do with hotels etc",Visual and emotional impressions,"Sketch bar in London, pompidou restaurant paris",3,-,-,"Bar lighting, led bedside lamp cove lighting","Bar lighting,dance areas","Wall washing, cove lighting, to highlight, spotlight, museums",I don’t use single light Leds,-1,-1,-1,0,0,0,-1,0,0,-1,0,0,0,-1,0,0,0,-1,-1,-1,0,0,-1,0,-1,0,"They are very small, so they can fit easily into the conceptual mechanism and design","Quite expensive, not much information – so you can not know the result",The fact that we do not have a lot of information so we don’t know what the result would be,I don’t know! Randomly?,Not at all!if I have a details where nothing else fits and I need different colour or colout temperature then I use Leds,How much white,Mixing colours and quality of the colours,Unique clear and uniform,To fit with the overall shene as a natural colour,To achieve the exact colours you need for your application,To achieve the exact colour you need for your application,-,Interior projects mostly residennces,"Greece, uk",2,1,Architect lighting designer phd candidate,0,0,-1,0,0,0,0,0 36,"Yes. Commercial, hospitality, healthcare, residential, interior, and exterior",Dicey at best,Debatable. Too many promises made now that don’t look like they’ll come to fruition,2,1,1,2,1,1,Constant contact with reliable vendors,"CCT, CRI, optics, rated life, constant current, warranty (at least 3 yrs, preferably 5 yrs), UL","UL-compliance, longevity of practice, service, reliability",5,5,5,5,5,5,5,2,5,5,5,5,2,4,You mean hospitality? Question is too broad to conveniently answer. All previous answers/criteria apply,All of the above,Simplicity,Too numerous and diverse to cite,3,-,-,"Yes. Commercial, hospitality, healthcare, residential, interior, and exterior","Yes. Commercial, hospitality, healthcare, residential, interior, and exterior","Yes. Commercial, hospitality, healthcare, residential, interior, and exterior","Yes. Commercial, hospitality, healthcare, residential, interior, and exterior",-1,-1,0,-1,-1,-1,-1,-1,0,-1,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,-1,-1,"Saturated color, long life, color mixing",Too much auxiliary junk to get them operational. Too many “white” versions. Inconsistency among LEDs from same vendor and between vendors. Lies about life&efficiency,"Misleading about maintenance factors (life to 70% lumen output requires initial overdesign by 30%). Plus heat dissipation, output, candlepower",-,Reasonably confident when using select few vendors,"Consistent 2700K or 3000K, 80+CRI",Ease of control and mixing,Consistent definitions on color naming,"Consistent 2700K or 3000K, 80+CRI",Ease of control and mixing,Consistent definitions on color naming,Too numerous and diverse to cite here,"Commercial, hospitality, healthcare, residential, interior, and exterior","USA, UAE",1,3,Lighting designer with BAE degree and 32 years experience,-1,0,0,0,0,0,0,0 37,"Decorative, ( wash or accent) and some down lighting",Getting better but we are still learning and they are still growing,"It looks well, I t may be a solution for the incandescent over time",3,2,1,2,1,1,"Many ways: media, manufactures etc","Output, color, reliability, usability, cost","Output, color, reliability, usability, cost",5,5,5,5,5,5,4,5,5,5,5,4,4,5,"Decorative, maintenance, practicality, energy conservative and good color quality","Decorative lighting, maintenance, practicality, energy conservation and good color quality The art and beauty of the design as a whole",For his or her designer to give them the best lighting design for their money,-,3,-,-,"Decorative, (wash or accent) and some down lighting","Decorative, (wash or accent) and some down lighting","Decorative, (wash or accent) and some down lighting",Less often for me,-1,-1,-1,-1,-1,0,-1,-1,0,-1,0,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,color,"Power, heat, color lamp, life, reliability, lumen output","Power, heat, color lamp, life, reliability, lumen output, cost",What is best for this porject,"Moderately so, it still to early to tell if there are enough good product out there",-,-,-,-,-,-,-,"Homes, Hospitalty, Houses of Worship",-,2,2,"20 years as a professional Lighting Designer- A member of IALD, IESNA, LC, DLF",-1,0,0,0,0,0,0,0 38,"Mainly for feature lighting in Leisure, Retail, Exterior, Landscape environments",Very useful tool which gives endless possibilities for a more successful lighting desing,"More efficient chips, better colour rendering, wider variety of CCT available, self illuminated LED surfaces (OLED) being able to be used in commercial applications, lower operating temperature",3,2,1,3,2,1,"Internet, magazines","Light output, CCT, Ra of the LED, Operating Temperature the luminaire, Manufacturer and the finish of it","Technical specification available for the products. Ability of the manufacturer to produce custom luminaires. Manufacturer is specialized in the production of LEDs",3,4,5,4,5,4,4,4,4,5,5,4,3,3,"Create a lit-environment according to the designers brief and the needs of the client. Usually a more comfortable, relaxing, warm, intimate design",Interior/ Architectural design,"Have the best possible design with minimum budget, Have a comfortable and pleasant space making users to feel comfortable in it","Hakkasan restaurant London, Yauatcha restaurant London",3,-,-,Feature lighting only,"Yes, as background lighting or in details in order to be able to change the feeling in the space",Feature lighting instead of Fluorescent lighting,"Yes, lower budget designs where the possivility of controlling RGB LED is not possible",-1,-1,0,-1,-1,0,-1,-1,0,-1,-1,-1,-1,-1,0,0,0,-1,-1,-1,-1,-1,-1,0,-1,-1,"Direct the light in the place where is required. Small size with a relatively high output for integrated details. Colour changing able to change feeling in a place. 0-100% output, no flickr","Operating temperature related to light output of LED and luminaire size, “Low” Ra, no linear spectral distribution, uncertainty of tech characteristics according to external temperature, change of CCT","Ra, Reliability of light caracteristcs throughout their life’s",It depends on the needs of the project and the specific detail. Usually light output and size of the luminare are the key issues,Very confident Always attention must be taken on the selection of the manufacturer in the high end projects as the client is really expecting a lot as the initial capital cost is quite high,"Light Output, Colour stability and consistency between luminaires, Ra, CCT",Colour stability and consistency. In general less sensible than the white LEDs as they are ment to provide just a colour wash. Also driver is really important in order to do the correct mixing,"Light Output, Colour stability and consistency between luminaires",-,-,-,-,"Leisure, Retail, Residential, Offices, Heritage, Landscape, Exterior, Masterplan, Hospital, Shopping Centers","UK, Ireland, Russia, Oman, France, Italy, Portugal, USA, Poland, Romania, Greece",1,1,"MSc in Electrical Engineering, University of Bologna",-1,0,0,0,0,0,0,0 39,Floodlighting of buildings-Jewllery showcases,Very powerful tool…still a bit weak for the use of interior environments,Led’s are the light of the future!!…but there is a need of more accurate technical and photometric values given by manufacturing companies,2,2,1,1,1,1,"By Lighting Journals, Luminaire Manufactures, Light & Building Exhibition",The lumen output…colour temperature…life time,"The LED’s used as a raw material…technical, mechanical, electrical criteria",5,5,5,5,5,5,5,5,5,5,5,5,5,5,"Energy efficiency, festive lighting, atmosphere…light showing the passing of time, interactive environments, colours of lighting carefully selected!","Functional considerations, energy efficiency,,.safety and security, architectural enhancement, creation of the appropriate atmosphere…interaction of lighting with space and people",Very little since there is not enough education on the matters of lighting design…Nevetheless the end user requires low cost and low energy schemes that draw people inside and raise sales.,"St.Albans Restaurant, London (Lighting Design International), Armani Ginza Tower London (Speirs and Major)",2,-,-,"Floodlighting, lighting of the outdoor environments and gardens",Floodlighting and architectural enhancement,-,Floodlighting and architectural enhancement,-1,0,0,-1,-1,-1,-1,0,0,-1,0,-1,0,-1,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,"Great energy efficiency, long life, durability, endless possibilities design wise","Lumen outputs, life depending on temperature, colour consistency, price!",Price and Leds that promise more than they give!,"On lumen output, manufacturers accurate technical and photometric information",Not as preferred since the information given by manufactures is still weak.,Careful selection regarding interior general illumination,Careful lighting design and application so that a balance and a concept is kept.,Careful lighting design and application so that a balance and a concept is kept.,"Color consistency, high lumen output…low thermal emission, light uniformity",Careful lighting design and color selection,Careful lighting design and color selection,Magna Science Centre-Speirs and Major,"Architectural Floodlighting, Retail, Housing, Leisure,Hotels, Offices",U.K. / Greece,2,2,Architecture MSc Light & Lighting UCL,-1,0,-1,0,0,0,-1,0 40,"Yes. We usually use LED’s extensively for exterior lighting, and for water features","In today’s environment LED’s are perfect t reduce the electrical power consumption, and make a lot of sense since the size of the fixtures is reduced which makes it perfect","LED will be used in almost all aspects of lighting design in the future. With improvement of CRI & CCT, will be used in interior applications. Although, initial cost might be a deterrent",3,2,1,2,1,1,Mostly from industry sources like manufacturers and their reps,"Low Lamp Wattage, Small fixture size.","Lighting Performance, fiixture / Reflector Design, Available warranty",5,5,5,5,4,4,5,5,5,5,5,5,4,4,In the leisure industry it is all about creating the right mood and ambience,"Glare control, dimming, and vertical lighting","The expectation always is to create the perfect mood for the guest, accentuate the architecture, and embellish the sense of space",Far too many to name,3,-,-,"We usually use LED’s extensively for exterior lighting, and for water features",We use RGB LED’s only for certain water features,Landscape Lighting and Building Facade Lighting,"14. Landscape Lighting and Building Facade Lighting",-1,0,0,-1,-1,0,0,0,0,-1,-1,-1,-1,-1,0,0,-1,-1,0,0,0,-1,-1,0,-1,0,Small fixture size and a high lumen output,They do not have the right colour temperature,Colour correction,"Lighting Performance, Fixture / Reflector Design, Available warranty",Quite confident.,Consistency in the colour is very important,Degree of saturation of the specified colour,"23. Consistency in the colour is very important.",-,-,-,-,Hospitality and wellness areas,"India, Germany, UAE, Bahrain, Maldives",1,1,"B’Arch, M.S. (Lighting Design)",-1,0,0,0,0,0,0,0 41,External applications,It makes the lighting design easier due to the size of luminaires,It will be used in all applications,3,2,2,2,1,1,"Magazines, internet and manufacturers",Efficiency and size,The brand name of the manufacturer,4,5,4,4,4,4,4,3,4,3,2,4,5,5,Interesting spaces,Nice atmosphere and practical use of the space,To attract people inside the space,"Morimoto restaurant, New York",3,-,-,"Bars, restaurants",Mostly in bars for different effects,At receptions and entrances to highlight them,When there is no need for different colours to highlight walls mostly,-1,-1,0,-1,0,0,0,0,0,-1,-1,-1,-1,-1,-1,0,0,-1,-1,0,0,-1,0,0,-1,0,Concealed lighting and energy effiiciency,Power,Cost,According to the size of fitting and manufacturer,Pretty confident due to its trustability,Colour temperature,Control,Colour temperature,Colour rendering,Result of the effect,Appearance of the objects due to the coloured light,"Rockefeller Center, New York, interactive space",Exterior and facade lighting,London and Greece,2,2,Architect and Lighting designer,-1,0,0,0,0,0,0,0 42,"Yes. Situations that require minimum maintenance, long lasting sources, small fixtures, as well as colour changing solutions.",I see too many exaggerated applications. Use of dynamism and colour with no conceptual purposes. It’s a powerful tool that is being used with no control and is generating a lot of visual pollution,"I believe it is a field in which there are improvements from day to day, almost. The future is more the more the substitution of other types pf light sources",2,1,1,2,1,1,"Industry’s reports, lighting magazines, fairs.","Photometric characteristics, lumen output, consumption, size and shape of fixture",Reliability of information. Photometric data. Colour temperature,5,5,5,5,5,4,4,4,5,4,5,4,4,5,"Provide visual comfort and create a luminous ambience coherent with the interior design, the identity of the place and the activities",Spatial and visual compositions. Visual comfort.,An experience to enhance the activities taking place. A tool to create a space compatible with the general appearance and ambience,-,3,-,-,Details or to create special luminous sensations,Sometimes. To create attraction for a facade to add the possibility of different perceptions to a static structure…,Not much,"To enhance the colour of a surface, for example",-1,0,0,0,-1,0,0,0,0,-1,0,-1,-1,-1,0,0,0,0,0,-1,0,-1,0,0,-1,0,dynamism,"Luminaires made for their specific lighting characteristics, CRI and price",The understanding of their specific luminous character so as to lead manufacturers to develop fixtures based on LEDs photometric qualities. End user to understand it is not always expensive to use LED,"Photometric data, colour data, fixture’s physical characteristic and price","Very confident. Because, I only work with reliable manufacturers",Colour temperature and CRI,"Colour mixing system (transitions, quality of colours, stability) / quality of white light created.",consistency,Depends on the project,Depends on the project,Depends on the project,-,"Hotels, museums, public spaces (library, civic centre), auditoriums, urban spaces…","Brazil, Portugal, Spain",2,1,Architect and urban planner. MSc in architectural lighting design.,0,0,0,0,0,0,-1,-1 43,"RGB installations, concealed lighting, furniture enhancing lighting",Use of LED has been increasing steadily in the recent past and will continue to do so,Main source for decorative lighting & exterior architectural lighting. Potential for replacing dichroic lamps,2,1,1,2,1,1,Manufacturers literature,"Luminaire manufacturer, LED source manufacturer, photometric data","Quality of products, available data on luminaires",4,5,4,4,3,5,3,4,5,4,4,5,5,5,Promotion of establishment & creation of stimulating/pleasant environment,Aesthetics,-,-,2,-,-,"Colour changing, concealed lighting, backlighting, facade lighting, marker lighst","Yes in concealed lighting applications, wall-washing applications, facade lighting for efficiency & compactness","Yes for concealed lighting applications, decorative effects, market lighting","Yes for concealed lighting applications, decorative effects, market lighting",-1,0,0,-1,-1,-1,-1,0,0,-1,0,-1,-1,-1,0,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,Long life – high efficacy,"Lumen output, warm white colour variations",cost,"Manufacturer of LED light source, manufacturer of luminaire",Quite confident,Colour variations – lumen output,Control system,Lumen output,-,-,-,-,"Private residences, hotels, multi-purpose developments and other","UK, Greece",2,2,Architecture,-1,0,0,0,0,0,0,0 44,"Undercounter, desk lamps",Needs improvement. Too expensive,Bright,3,1,1,1,1,1,LIGHTING AND LED MAGAZINES,"MANUFACTURER, COST , LUMEN OUTPUT AND COLOR CONSISTENCY","MANUFACTURER, COST , LUMEN OUTPUT AND COLOR CONSISTENCY",5,5,5,5,5,4,5,4,5,5,5,5,5,5,"I DON’T DESIGN HOTELS, BARS AND RESTAURANT",-,-,-,1,-,-,-,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,-,-,-,-,-,-,-,-,OFFICES,USA,1,2,ARCHITECT CONVERTED TO LIGHTING DESIGNER. LIGHTING DESIGNER IN ENGINEERING COMPANY,0,0,0,0,0,0,0,-1 45,"Primarily indirect, such as coves",LEDs have a long way to go before they really are worth while. I personally abhore them,"It is the great hope. Heat, color, CRI and LUMINANCE are key factors in a successful LED product",3,1,1,1,1,1,"Sales representatives, manufacturers,seminars, magazines, trial and error","LED Color, CRI, fixture design, lamp images, output and efficacy","Design + LED Color, CRI, fixture design, lamp images, output and efficacy",5,5,5,5,5,4,5,2,5,5,5,4,5,5,"To create atmosphere and drama, create a memorable, aspirational experience","To create atmosphere and drama, create a memorable, aspirational experience + Maintenance and cost","To create atmosphere and drama, create a memorable, aspirational experience + Maintenance and cost","Rock Sugar Restaurant, Los Angeles. Park Hyatt, Tokyo, Morimoto, NYC. Park Hyatt Philadelphia",3,-,-,"Indirect, back bar, shelves, under ledges, coves","Yes, but rarely. Too establish color, not so much for color changing cycles","Yes, more than color. Indirect, back bar, shelves, under ledges, coves",Yes,0,-1,-1,-1,-1,0,0,0,0,-1,-1,-1,0,-1,-1,0,0,-1,0,-1,0,-1,-1,0,-1,0,Small(ish) at low wattage / low output,"Cost, life, replacement or lack of replacement. Replacements with same lumen output. Not having to replace an entire fixture","Cost, life, replacement or lack of replacement. Replacements with same lumen output. Not having to replace an entire fixture","Color, size, etc","Mildly, I would prefer to use anything else. Lifecycle costs and responsibilities when fixtures need to be repcaced as they can not be maintained (i.e changing a light bulb)in 99% of all applications","Color (K), CRI, intensity, luminance of source, cost. Life","Size, control gear, software, cost, life","Size, control gear, software, cost, life",-,-,-,-,"Hospitality (Leisure), residential, retail","USA, UK, FR, Germany, Japan, Korea, China, UAE, KSA,",1,2,Lighting Architect,-1,0,0,0,0,0,0,0 46,"Yes. Surface grazing, cove lighting, millwork and cabinetry, landscape lighting, fountain lighting, and some down lighting applications","fast becoming a viable alternative source, but color and intensity consistency is problem. New LEDs will look different than the originally installed pieces, and at greater cost","It is very bright. They lighting industry need to find consistency in color and intensity of LEDs, and a standard methodology of testing for their photometric performance",2,1,1,2,1,1,Industry magazines mostly,"Photometric performance, color, modularity. I want to replace individual modular LEDs if possible (not all lengths of fixtures)","Experience, and their LED supplier/ vendors.",5,5,5,5,0,3,3,3,4,4,4,4,3,2,"The main objective is creating a conducive atmosphere to maximizing the experience of the clientele, and thereby increasing the sales and revenue of the business","not to overlight spaces,not to overlight spaces, apply design theory carefully, enhancement of ambiance and atmosphere most important than efficiencies and cost, maximize the experience","LOL….low initial cost, easy maintenance, minimal lamp types, but phenomenal results","Farralon restaurant in San Franciso, CA. Toys ‘r Us in Times Square, NYC",3,-,-,"Wall grazing, niche lighting, cove lighting, millwork, backlighting of luminous panels and glass",Infrequent use. Some fountain applications,"We use white for coves, wall grazing, niches, art, millwork",We have only use monochromatic colored LEDs for markers and night lighting,-1,-1,0,0,0,0,0,-1,0,0,0,-1,0,-1,-1,-1,-1,-1,0,0,-1,-1,0,0,-1,0,"RGB, long life with low maintenance, small size for niche installations","Controlability, uniformity, photometric testing","LEDs increase in intensity and shift in color so much f that replacing them will always be a problem on site. Uniform photometry, large heat sinks required to remove heat from the boards",Appropriateness of performance ot task. Cost.,Depends on the task. I’m still a little doubtful of using it or general downlighting,CRI values and consistency between batches of LEDs,Ease of programming,Uniformity,Adequate control and color performance.,Effective programming and creation of desired effects,-,-,"Hospitality, commercial offices, churches, custom residential, institutional","USA, France, West Indies",2,2,"Owner of three-person lighting design firm. Bachelor Degree in Interior Design, LEED AP certified, LC certified",-1,0,0,0,0,0,0,0 47,"Yes! In many application (leisure, bar-cafe, offices,… but mostly for accent lighting of to create a specific effect)",They are really good as they save energy but not very powerful and quite expensive,They will get better and better,3,2,2,2,1,0,"Lighting magazines, newsletters, SLL, PLDA, internet, lighting companies",It colour and effect that creates,If they have the type of fitting that I m looking for and if they make good fittings,5,5,4,4,4,5,4,5,5,3,4,5,5,5,"create different effects, use LEDs for accent lighting","what is the effect you want to create, how to attract people, to catch their eyes",-,"Cumberland Hotel London, Old Spitaldiels Market",3,-,-,"create different effects; colour changing or use different colours in general and to highlight something and for decorative reasons","create different effects; colour changing or use different colours in general and to highlight something and for decorative reasons",highlight something usually I use white LEDs,-,0,-1,-1,-1,-1,0,-1,0,0,-1,0,-1,-1,-1,0,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,"Low energy consumption, create colour effects, very narrow beam spotlights, very cool white colour, they can have remote drivers, they dont have very big fittings",General lighting,-,"According to the application you want to use it, the effect you want to create, if you are interested in the colour rendering, the beam, the material of the fitting… etc",Very but only in cases that you don't need a lot of light and you know the effect that you will get from the specific luminaire,What kind of white colour you get from the fitting / colour rendering,"The control system that can be used with the fittings / what kind of effects you can get / how strong they lamps are / the beam angle","The control system that can be used with the fittings / what kind of effects you can get / how strong they lamps are / the beam angle",To get the right effect exactly as you thought it will be,To get the right effect exactly as you thought it will be,To get the right effect exactly as you thought it will be,-,"private houses but I have done leisure, schools, square, offices","London, Thessaloniki",2,1,Architecture,-1,0,-1,0,0,0,0,0 48,"Yes, primarily for places where colored light is appropriate and for special applications such as hospital MRI rooms","We are finally moving past the “early adapter” stage, but one must be very careful with so many false claims and poorly made products",The future is very strong. These sources are improving rapidly and will become mainstream within the next 5 to 10 years,3,2,1,2,1,1,"Manufacturers’ representatives, trade shows, trade publications","Good color rendition, no glare, fixture efficiency and quality at reasonable price","Reputation in the marketplace, track record with older technologies",5,4,5,4,4,4,3,2,5,5,5,5,5,5,I do not have experience in the leisure industry,I do not have experience in the leisure industry,I do not have experience in the leisure industry,I do not have experience in the leisure industry,-,-,-,-,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,-,-,-,-,-,-,-,-,-,-,0,0,-,0,0,0,0,0,0,0,0 49,"Yes, interior: downlighting, accent lighting, surface washing – exterior: accent lighting",LEDs are emerging technology that must mature before being widely applicable,"LEDs could be used for most lighting applications, IF(!) the technology matures",2,1,1,1,1,1,"Trade press, popular press, manufacturer mailings",Correlated color temperature (2700K to 3000K) and high CRI,Warranty and product support,5,4,5,4,4,4,3,3,5,5,5,3,3,2,Visual impact and integration with overall project theme,"Consistent operation, consistent appearance, ease of maintenance, initial cost",Lighting needs to be high value for investment,-,3,-,-,Visual features (surface washing and decorative elements),RGB adds a potential dynamic element to heighten visual impact for decorative elements,Warm tone white LEDs can be effective for downlighting and feature accent lighting,"Single color LEDs can be more intense, visually consistent and easier to control than RGBs",-1,-1,0,0,-1,-1,-1,-1,0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,"Small, low power sources with acceptable warm white color or saturated RGB","Heat, dimmability of drivers, poor system coordination, lack of history, rapid growth","Heat, dimmability of drivers, poor system coordination, lack of history, rapid growth",Warranty information and trust in the manufacturer/vendor,LEDs are emergent technology and are appropriate only for clients willing to risk the potential problems and troubleshooting inherent with new technology,White LEDs must be available with CCT of 2700K to 3000K and CRI better than 85,"Ease of programming, system reliability, product replacement","Reliability of manufacturer/vendor, consistency of color, product replacement",White light sources are appropriate for most all applications,Limited to visual feature and decorative effects with dynamic color changing requirements,Limited to visual feature and decorative effects,-,"Commercial office, retail, leisure, residential, interior and exterior",USA,1,2,Lighting designer with a BS degree in architectural engineering,-1,0,0,0,0,0,0,0 50,"Yes, in Leisure and Residential Projects and Urban Lighting",Important due to low power consumption and easy maintenance,"Even longer life, higher lumen maintenance, higher luminosity",3,1,1,2,1,1,Personal research and luminaire manufactures,"Compact light source, long life, range of colours",Product quality balancing Product price,5,4,5,4,4,5,5,4,5,4,4,4,4,4,Dynamic and flexible lighting schemes,Dynamic and flexible lighting schemes easy to maintain,Lighting that transforms a space to create certain ambience,"Lever House Restaurant New York, architect Marc Newson, lighting design Herves Descottes Beige Restaurant Tokyo, architect Peter Marino Architects, lighting design Herves Descottes",2,-,-,"Accent lighting, Exterior lighting , Indication lighting, Concealed and Decorative lighting","Yes, in Concealed and Decorative lighting to create dynamic lighting schemes","Yes, in Accent lighting, Exterior lighting, Indication lighting, due to small size of luminaire and satisfactory Suffusion of light","Decoration lighting, Illumination of special constructions for wide range of colours available",-1,0,0,-1,0,0,-1,0,0,-1,0,-1,-1,-1,0,0,-1,-1,-1,-1,0,0,-1,0,0,-1,"Small size Light source, Easy to maintain, Wide colour range",Uncertain Life time affected by the application conditions e.g. weather in exterior lighting,Low Lumen Output (compared to other light sources) and uncertain Lifetime,Depends upon application and goal of project,Not confident because of Uncertain LED Lifetime and Colour consistency,Colour temperature consistency,Good colour mixing,Colour saturation,Consistent colour temperature within the luminaire and between luminaires,Even colour mixing within the luminaire,Even colour distribution,"Target Interactive Breezeway, Rockefeller Center, New York Anemix Installations in Leisure areas","Residential, Office buildings and Leisure, Urban Lighting","London UK, Berlin Germany, Athens and Thessaloniki Greece",2,2,"Dipl Architect Engineer, (ma) Architectural Lighting Design",-1,0,0,0,0,0,0,0 51,Step lighting; limited signage. Venues that need color changing effects.,Too expensive; not enough bang for the “buck”,If the downlights could be totally recyclable and have a good lumen package.,3,2,1,2,1,1,Reading magazines and getting information from manufacturers reps.,It depends on the application. Mostly consistant good color of the LEDs in the luminaire.,Consistancey of LEDs. Elegance of fixture.,5,5,5,5,5,5,5,3,5,5,5,5,5,5,Low cost of fixtures. Energy efficiency. Easy maintenance. Good looking fixture.,Low cost of fixtures. Energy efficiency.,Low cost of fixtures. Energy efficiency. Easy maintenance. Good looking fixture.,Royal Caribbean Cruise Ships,3,-,-,Linear wall washers. Display lighting. Color changing applications.,Only when special effects are required.,"Cove lighting, linear wall washers. Low wattage. Long lasting fixture.",For the design effect and for cost and control limitations,-1,0,0,0,-1,0,0,0,0,-1,-1,-1,-1,-1,0,0,0,-1,0,0,0,-1,-1,0,0,0,Smaller fixture sizes.,Cost. Lumen out.,Cost and recycle-ablity of the fixture,Lumen output. Size. Cost.,Depends on the manufacturer. Few stand by their product.,"Yes, important.","Yes, important.","Yes, important.","Yes, important.","Yes, important.","Yes, important.",-,All types,USA; Germany; France,2,3,-,-1,0,0,0,0,0,0,0 52,"Yes. Exterior rail and ground lighting. Under cabinet, cove lighting",X,It needs to improve its color rendering properties and deal with heat and cost issues if it is to have a real future in interiors,2,1,1,1,1,1,Manufacturers and technical articles,"Functional appropriateness, heat, color temperature, cost","Quality of product, color tempiture,output.",5,5,5,5,5,5,4,1,5,2,3,5,4,2,Ambiance and function,Ambiance and function, Low cost but stylish,X,2,-,-,"Strip lighting behind curtains, closet lighting",no,"Yes. Rail lighting , bar lighting, curtain lighting",no,0,0,0,-1,0,0,0,0,0,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,Size and output,"Color , cost , heat",Color cost heat,In office mockups,Not very because the claims of led manufactures,Consistency and range of whites,x,-,-,-,-,-,"Hotels, trains",China usa,2,3,x,-1,0,0,0,0,0,0,0 53,"Yes, Architecture Enhancement, Decorative elements",Merely for Enhancement; the technology is still far off to replace general lighting fixtures,With vast improvments and technology leaps; it should be soon that LED are capable to be used as general lighting,3,2,1,2,1,1,"Through manufacturer's seminar, Lighting magazines, website","Lumens output, CRI","Reliability, technical support",3,5,4,4,4,3,2,2,2,3,5,4,4,4,"Creating mood, ambiences",The importance of enhancing patrons' and guest experience,"Cost effective in lighting fixtures, lighting mood and experience to encourage guests' re patronizing the industry",Fujiya Ryokan in Japan,3,-,-,"Decorative elements, Cove lighting",Aesthetic Enhancement,Site contraint,-,-1,0,0,-1,0,0,-1,0,0,-1,0,-1,-1,-1,0,0,0,-1,-1,-1,0,-1,0,0,-1,0,"Low Energy, Ability to conceal in hard to reach areas, low maintenance","Not enough Lumen Output, CRI.",Cost,"Reliability of product, Binning of LEDs, Colour shift.","LEDs are mostly used for dynamic lighting effect, Product chosen are subjected to mockups",Color shift,"Compatibility of controls, lumens output"," Compatibility of controls, lumens output ",The ability to use the multi colour temperature of white,"Changing colour, replacing conventional colour wheel technology",Low maintenance,I am not really sure on the leisure industry,"Commercial, Residential","Taiwan, Singapore",1,1,"Interior Design, Lighting design",-1,0,0,0,0,0,0,0 54,"Yes, residential interior and exterior spaces",Very good. Very earth friendly Good for art-no-UV,"Museum lighting, landscape lighting, residential lighting, commercial lighting",3,2,1,2,2,1,"Seminars, professional publications, mfg’s reps","Color, dimmability, lumen out put","Track record, technical assistance, design innovations",5,5,5,5,5,5,5,3,5,5,5,5,5,5,"To create a mood, a escape from day-to-day worries","Flexibility, low maintenance, energy effeciency","Availability, ease of maintenance",-,2,I am a residential Lighting designer,I use LEDs in my residential designs frequently,In Kitchens and Baths to fulfill Caliufornia’s Title 24 requirements,No,"Warm white for residential interiors, cool white for closets, laundry rooms and landscaping","Only warm white and cool white, no colors",0,0,-1,0,-1,-1,-1,-1,0,-1,0,0,-1,-1,-1,0,-1,-1,-1,-1,-1,-1,0,0,0,0,"Color changing, UV protection, long lamp life","No long term studies on “incandescent” LEDs, only colored LEDs",Low light output,We test products in-house before recommending them to clients,Very confident. All of us in the industry really want LEDs to be the next generation of lighting,As close to incandescent as possible for interior applications,Programability,Consistant color,Blending in which other lighting in the space,-,-,-,Residential only,"United States, Japan, Thailand, Canada, Brasil",1,3,"30 years as an indepaendant lighting designer, I have written 7 books on lighting, a give lighting seminars all over the world.",-1,0,0,0,0,0,0,0 55,"Yes, interior and exterior architectural applications","Considerable energy savings, however heat / thermal management is a big concern to insure luminaire longevity","The technology is rapidly growing, which causes problems with keeping up on the technology",3,1,1,3,1,1,It is hard! But manufacturers are our largest educator,Thermal management,Warranty and service,5,5,5,5,5,5,5,3,5,5,5,5,4,4,Compliment/ support the architectural design,"Too many to answer, but CRI and visual and functional lighting",Easily maintained lighting systems and cost,-,2,-,-,Under counter lighting; signage; exterior facade lighting,Very little,-,Mostly use single color because of low cost compared to RGB colors,0,-1,0,-1,0,0,0,0,0,-1,-1,0,0,-1,0,0,-1,-1,0,-1,0,-1,0,0,0,0,-,Color consistency and binning and manufacturing,Establishing an industry for LED standards and comparing them to other light sources,-,"I’m very cautious to specify LEDs, but are typically forced to use LEDs for energy codes",CRI,Ease of control and colour mixing,Color consistency and binning,-,-,-,-,Interior; exterior designs,All over the world,1,2,Theatrical lighting and architectural lighting; manufacturing; sales,-1,0,0,0,0,0,0,0 56,Yes – Various applications across a spectrum of projects,I think it is overused.,Higher efficiency/ Better colour rendering/ new optical packages for LEDs,2,1,1,1,1,1,"Manufacturers, Observation, Literature, Internet",Appropriateness to the lighting solution,Reputation and past experience,5,5,5,5,5,4,5,3,5,5,5,5,5,5,"Effect, Cost, Operations","Effect, Cost, Operations","Effect, Cost Operations",-,3,-,-,Effect lighting and functional lighting,Infrequent,"More frequent: Wayfinding, general illumination",Infrequent use of colour,-1,-1,-1,0,-1,0,0,-1,0,-1,0,-1,-1,-1,-1,-1,-1,-1,0,-1,-1,-1,-1,0,-1,0,Life and miniature size,Colour and efficiency,"Unknowns, e.g. Disposability, consistency of technology, no standards, cost",Depends on lighting problem,Cautious confidence – Technology is not stable,No Answer,No Answer,No Answer,No Answer,No Answer,No Answer,No Answer,-,Global practice,1,3,Lighting Designer,0,0,0,0,0,0,0,0 57,"Backlighting, display cabinet, exterior lighting","White: used too much, a see a lot of bad uses and band colours, RGB: great","They have the potential of changing the world, but until the definition of ""white"" is master, LED will remain a small player in my design business",3,1,1,1,1,1,"Manufacturers, magazines, trade shows",Color consistency and binning,Warranty,5,4,5,5,5,3,3,3,5,5,5,3,2,2,Creating mood and atmosphere,"Maintenance, aesthetics","Effect, atmosphere, cost",-,1,"Halogen/ incandescent decorative, downlighting, accent",color inconsistency and output,-,-,-,-,0,0,0,-1,-1,0,0,0,0,-1,-1,0,0,-1,0,0,0,0,0,0,0,-1,0,0,0,0,-,"Poor color choices, and poor binning",Binning,Manufactuers,Proceed with caution,Very very important,Not so important,Never,Color consistency,None,None,-,"Interior commercial, retail, residence","USA, Greece",1,3,Lighting Designer,-1,0,0,0,0,0,0,0 58,"Linear sources, uplight applications","It varies so greatly, there are some good LEDs and somer REALLY bad ones","Constant color, better color rendering, more powerful sources",3,2,1,3,2,1,Product fairs and product representatives,"Color temperature, lumen output, size of fixture","Competence, history with LED",5,5,5,5,4,5,5,3,5,5,5,5,4,5,Creating beautiful spaces and memorable experiences,How does it affect the guests experience,Cost and maintenance,-,3,-,-,"Cove lighting, accent lighting in millwork",Special effects,"Cove lighting, millwork lighting",-,0,0,0,0,0,0,0,0,0,-1,0,0,-1,-1,0,0,0,-1,0,0,-1,-1,0,0,0,0,-,Lumen output,"Color rendering, cost",-,-,White rendering is critical,-,-,-,-,-,-,All types,We work globally,1,2,Architecture,-1,0,0,0,0,0,0,0 59,-,They are in year 4 of a 10,There is quite a bit of promise but today there are very LEDs,0,0,0,0,0,0,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,3,-,-,-,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,-,-,-,-,-,-,-,-,-,-,1,0,-,0,0,0,0,0,0,0,0 60,-,-,-,0,0,0,0,0,0,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,1,-,-,-,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,-,-,-,-,-,-,-,-,-,-,0,0,-,0,0,0,0,0,0,0,0 61,-,-,-,0,0,0,0,0,0,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,1,-,-,-,-,-,-,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-,-,-,-,-,-,-,-,-,-,-,-,-,-,0,0,-,0,0,0,0,0,0,0,0 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,Notes:,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.4. where 3= a lot, 2= moderate, 1= little",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q8. where 5 = very high, 4= high, 3= moderate, 2= low, 1= very low",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.14. where 0 = yes, -1 = no",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.15. where 0 = yes, -1 = no",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.26. where 1 = male, 2 = female",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.27. where 1 = 18-30, 2 = 31-45, 3 = 46+",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.29. where 0 = yes, -1 = no",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,," ""-"" means that there was no reply",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.30 personal data treated with confidentiality, therefore not included in this file",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,"Q.31 personal data treated with confidentiality, therefore not included in this file",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,