the 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".
|