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• TM-21 does not determine traditional life or & N9 ^8 h8 P5 }" a3 v
“time to failure” of an LED Lighting system3 P& o8 }: y2 A, a, Z- Y
– The useful life of an LED system has many
( o( G/ q) j ^" w' w! A3 v4 c+ dcomponents that need to be considered . g9 A/ t; F# ]7 B- e
(lamp, driver, lens, etc.)3 |/ ^! N- W o) ]! s5 H, T! }* {% o5 ]
– LEDs degrade (like all light sources) but for
9 D* Y& _, D# l; U4 Z- ~/ `potentially very long periods of time. Instead 3 g8 J8 [; M [7 [* O+ a$ c% H
of outright failure, LEDs will eventually dim
1 l( P4 w% k( m" a' W) R: ito a point that is too low to serve their
* j+ ^9 ]! s# V( A5 m% C" cpurpose ) O9 |4 r7 Z0 I1 e
• TM-21 does project the lumen maintenance : E% m1 Y! v$ D, l$ R, q
of an LED source (package/array/module)
8 X9 s5 a) v6 \9 A- k8 R8 k( }….. Which can then be used to project
, @/ D8 t- B# l3 D( a" othe expected lumen output of the source
, t% a O! A+ bas part of a system (fixture) |
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