radiant efficiency

[2.6.2]  (of a source of radiation) (ηe)

Ratio of the radiant flux of the emitted radiation to the power consumed by the source. Unit: 1.36

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

36. International Lighting Vocabulary, Third Edition CIE Document 17.4, Vienna: Commission Internationale de l’Eclairage, 1987.

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