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LM-80 Measuring Lumen Maintenance of LED Light Sources) h, J( E7 G' d/ Z9 ~* |
• Approved method for measuring lumen depreciation of solid-state (LED) light
, c) u* g/ h- D: B6 Lsources, arrays and modules.
3 O; D* e. J. u% n( J! q• Does not cover measurement of luminaires.% h+ j; J/ u) }, [& j$ P; D6 G
• Does not define or provide methods for estimation of life.0 C- ?. E0 }2 e2 X# ?5 M
5 G5 w$ i/ j$ b/ A3 JTM-21 is a Technical Memorandum being developed by an
- n* ?' ?3 o4 d9 s. u% O" D5 r0 oIlluminating Engineering Society (IES) technical committee& H2 N. x' y5 p, d& n2 E: B0 z
• It is currently in the IES vote/comment stage and therefore, 4 Y( V' t& N, a- B- ^& W- Z
may change before final publication
# d$ W' [4 L( z3 w• Information provided here is preliminary and not : J8 l% V6 f) T" t
approved by IES |
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