luminous efficacy

(redirected from Lighting efficacy)
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Related to Lighting efficacy: luminous efficiency, Lumens Per Watt

efficacy, luminous

The amount of light emitted by a lamp for each watt of power consumed. It is expressed in lumens/watt.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann