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Area Lighting / Light sources

IEV ref845-07-65

en
luminous flux maintenance factor
lumen maintenance (of a lamp)
ratio of the luminous flux of a lamp at a given time in its life to its initial luminous flux, the lamp being operated under specified conditions

Note – This ratio is generally expressed in per cent.


fr
facteur de conservation du flux lumineux (d'une lampe) m
rapport du flux lumineux d'une lampe à un moment donné de sa vie à son flux lumineux initial, la lampe fonctionnant dans des conditions spécifiées

Note – Ce rapport s'exprime normalement en pour cent.


ar
عامل الصيانة للدفق المنير

de
Lichtstromverhältnis, n
Lichtstromfaktor, m

es
factor de mantenimiento del flujo luminoso

fi
valovirran alenemakerroin

it
fattore di mantenimento del flusso

ko
광속 유지율

ja
光束維持率, <ランプの>

no
nb lyskildens lystilbakegangsfaktor

nn lyskildens lystilbakegangsfaktor

pl
współczynnik utrzymania strumienia

pt
factor de manutenção do fluxo luminoso (de uma lâmpada)

sv
ljusflödesförhållande

Publication date: 1987
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