Luminous Efficacy
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2-1-030
Luminous Efficacy (of a source)
The quotient of the luminous flux emitted by the power consumed.
Symbol: ?
Unit: lumen per watt (Im/W)
Note: Formerly Luminous Efficiency
Reference: C.I.E. (modified)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
