17 Jun
2019
17 Jun
'19
9 a.m.
Re; 1. ISO-3664:2009 illumination (graxx@videotron.ca) Hello Roger Just to add, if the luminaire uses a glass or plastic cover you have to check if it is effectively UV filtering. Most old and many modern ones are. Below is a GTI reading, no glass which is 3664:2009 compliant. [image: GTI.png] regards Malcolm Mackenzie Colour Engine
