What is TM-21? Why should I care about this Light Standard?

Ledlightexpertcom17 May, 2022Business

TM-21 is the illuminating Engineering society of North America (IESNA) approved method for taking LM-80 data and making useful LED lifetime projections from it. The standards apply to lifetime projection of LED package, array or module alone. The result may be used for interpolating the lifetime of an LED light source within a system (luminaire or integrated lamp) using the in-situ LED source case temperature.

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