FAQ

What is the Flux?
Flux is the measure of the perceived power of light. Flux is usually measured using the Lumen for Luminous Flux. Note that the value of Flux is always positive.
Can the Flux be negative?
No, the Flux, measured in Luminous Flux cannot be negative.
What unit is used to measure Flux?
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 Flux can be measured.
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