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• TM-21 does not determine traditional life or
, P' }: i% j7 R# B h1 x“time to failure” of an LED Lighting system. W! a0 b$ z8 S+ Y9 A
– The useful life of an LED system has many
& v. B4 M" _5 O' _) tcomponents that need to be considered
" S9 p0 t3 \7 x9 }0 @! O(lamp, driver, lens, etc.)
* ?( {5 z. f& n+ w$ b# N# N* v– LEDs degrade (like all light sources) but for ( s; |# v; Y0 ~& ]" j( L" m4 X# |
potentially very long periods of time. Instead - c- R5 X7 Z6 B9 W7 i& V
of outright failure, LEDs will eventually dim
9 ~4 |' p2 D& h* \ _* {2 E7 }to a point that is too low to serve their ! h" D4 S. ^, Z8 k3 Z
purpose ! i9 M% T4 M. } Q+ @) t
• TM-21 does project the lumen maintenance : f# i ]8 v8 c- `# @3 C, s
of an LED source (package/array/module)$ c# r/ `1 O6 O, [: m! i
….. Which can then be used to project ( C8 ` f$ S' V( s z
the expected lumen output of the source 8 U `: l0 d8 K0 p7 m+ i1 R$ D2 h/ M; g
as part of a system (fixture) |
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