The Lumen (lm) is the SI unit of Luminous Flux, representing the total perceived power of light emitted from a source. This measure of visible Light output is weighted by the human eye's sensitivity, distinguishing it from raw radiant energy.
The Lumen (lm) is the SI unit of Luminous Flux, representing the total perceived power of light emitted from a source. This measure of visible Light output is weighted by the human eye's sensitivity, distinguishing it from raw radiant energy.