FAQ

What is the Luminous Flux?
Luminous Flux, or luminous power, is the measure of the perceived power of light. Luminous Flux is usually measured using the Lumen for Luminous Flux. Note that the value of Luminous Flux is always positive.
Can the Luminous Flux be negative?
No, the Luminous Flux, measured in Luminous Flux cannot be negative.
What unit is used to measure Luminous Flux?
Luminous Flux is usually measured using the Lumen[lm] for Luminous Flux. Candela Steradian[lm], Lux Square Meter[lm] are the few other units in which Luminous Flux can be measured.
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