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LM-80 Measuring Lumen Maintenance of LED Light Sources
3 y1 `3 ~* K/ [3 y7 c• Approved method for measuring lumen depreciation of solid-state (LED) light
. ^9 a9 K. j. n7 L, T2 z* rsources, arrays and modules.
( e8 N7 [7 A4 ~• Does not cover measurement of luminaires.
A+ _9 f* q6 e, |! D- T* h- v5 q• Does not define or provide methods for estimation of life.: g0 ?" n$ N, c8 N: }; U( [
5 E: Y& v: w1 R% `7 U2 QTM-21 is a Technical Memorandum being developed by an * `& R% ]) P6 b! z) h: o" `+ O
Illuminating Engineering Society (IES) technical committee
/ o7 n1 T, E6 }# N, K2 B1 T• It is currently in the IES vote/comment stage and therefore, ' a4 s( Z3 v! F4 g: E, o
may change before final publication! m: ~. S2 r3 ?! o& g- W: C) d0 [; k
• Information provided here is preliminary and not
6 o- s R, K X! ^9 Y8 Kapproved by IES |
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