What Does Lumens Mean?

Answer

A lumen is a unit of measurement of the amount of brightness that comes from a light emitting source. Lumens define 'luminous flux,' which is energy within the range of frequencies we perceive as light.
1 Additional Answer
Ask.com Answer for: what does lumens mean
lu·men
[loo-muhn]
NOUN [PLURAL LU·MENS, LU·MI·NA]
1.
Optics. the unit of luminous flux, equal to the luminous flux emitted in a unit solid angle by a point source of one candle intensity. Abbreviation: lm
2.
Anatomy the canal, duct, or cavity of a tubular organ.
3.
Botany (of a cell) the cavity that the cell walls enclose.
Source: Dictionary.com
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