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Convert candela, lumen, lux, footcandle. Free light intensity converter.
A: Candela (cd) is the SI base unit of luminous intensity. The light from a candle is often used as a simple reference point for roughly 1 candela.
A: Lumen measures total light output. Lux measures illumination per square meter, so 1 lux equals 1 lumen per square meter.
A: A 40W equivalent bulb is often around 400-450 lumens, a 60W equivalent is around 800 lumens, and a 100W equivalent is roughly 1500-1600 lumens.