TY - JOUR AV - public EP - 19 JF - The Lighting Journal N1 - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions. SN - 0950-4559 ID - discovery1569419 PB - EMAP Y1 - 2016/10// A1 - Guan, L A1 - Unwin, J TI - Clear as Daylight SP - 16 UR - https://www.theilp.org.uk/resources/the-lighting-journal/ ER -