IEVref:845-01-54ID:
Language:enStatus: Obsolete
Term: radiant efficiency (of a source of radiation)
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Symbol: ηe
η
Definition: ratio of the radiant flux of the emitted radiation to the power consumed by the source

unit : 1

NOTE – It must be specified whether or not the power dissipated by auxiliary equipment such as ballasts, etc., if any, is included in the power consumed by the source.


Publication date:1987
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