LED Life Versus LED System Life
نویسندگان
چکیده
The useful life of an LED is presently determined by the IESNA LM80-08 lumen maintenance standard. Even though an LED system has many components, the current industry practice rates LED system lifetime based on a single component, namely, the LED. LED system life is one of the least understood parameters, especially in application environments. As a result, any lifetime claim for a complete LED lighting system, such as a lamp or luminaire, is a guess. This paper describes an accelerated life test of an LED system to predict the lifetime at any given environment temperature and system use (ON-OFF) pattern. Author
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