Optical Terms Gallery Optical Terms LED DOWNLIGHT, LED LINEAR LIGHT, LED Neon Flex, LED Panel light, LED strip light Optical Terms1. Luminous flux Luminous flux refers to the radiant power [...]By liu, marke|2021-01-16T21:44:24+08:00March 14th, 2018|LED DOWNLIGHT, LED LINEAR LIGHT, LED Neon Flex, LED Panel light, LED strip light|Comments Off on Optical Terms Read More