October 27, 2021
Lumen/ Watts (lm/W)
Array 
Lumen/ Watt is a ratio expressing the luminous efficacy of a light source. The symbol used for lumen/ watt is Lm/w.
October 27, 2021
Lumen/ Watt is a ratio expressing the luminous efficacy of a light source. The symbol used for lumen/ watt is Lm/w.