rated luminous flux (of a type of lamp)

value of the initial luminous flux of a given type of lamp declared by the manufacturer or the responsible vendor, the lamp being operated under specified conditions

Unit: lm

NOTE 1 The initial luminous flux is the luminous flux of a lamp after a short ageing period as specified in the relevant lamp standard.

NOTE 2 The rated luminous flux is sometimes marked on the lamp.

NOTE 3 In French, formerly "flux lumineux nominal".

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