IES vs. UL: Who’s Lighting the (Circadian) Way?
The Illuminating Engineering Society (IES) and Underwriters Laboratories (UL) are in a duel over standards that may govern your circadian rhythm for lighting in the workplace. IES is the ANSI-accredited Lighting Standards Developing Organization in North America. IES has prepared a forthcoming publication, Recommended Practice for Supporting the Physiological and Behavioral Effects of Lighting in […]