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LM-80 Measuring Lumen Maintenance of LED Light Sources* n- ^5 C E3 a2 s2 K. t
• Approved method for measuring lumen depreciation of solid-state (LED) light
8 A! k( k* g" [. _3 fsources, arrays and modules.
9 s5 f! ]9 D+ @. x• Does not cover measurement of luminaires.( {' t$ |) S+ V5 C# N
• Does not define or provide methods for estimation of life.
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8 a# K& J8 l$ q4 w# D, ~TM-21 is a Technical Memorandum being developed by an
( [$ p2 ~ y, XIlluminating Engineering Society (IES) technical committee, f3 H+ Q4 X: L' r0 L* Y
• It is currently in the IES vote/comment stage and therefore,
7 M( M- Z+ F" g) h1 m* ^may change before final publication# j5 e# B* e3 ~" J! Q6 V
• Information provided here is preliminary and not
& h/ \( b6 o( h/ B$ j* T2 e! ~) w. yapproved by IES |
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