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The Study based on Accelerated Degradation Test of General Lighting 4W LED Lamp using External Converter  

Park, Chang-Kyu (Korea Institute of Lighting Technology)
Oh, Geun-Tae (University of Suwon)
Publication Information
Journal of Applied Reliability / v.11, no.3, 2011 , pp. 267-279 More about this Journal
Abstract
LEDs have been used extensively in the mobile device, automobile, and general lighting because they are semi-permanent, long life, less power consumption, reliable and environmentally friendly. In this paper, the accelerated degradation test(ADT) for a general lighting 4W LED Lamp using external converter is considered. The conditions of ADT are high temperature and high humidity. We show that its life time is log-normally distributed with same parameters under both a normal condition and an accelerated condition, and also derive an accelerated factor.
Keywords
LED; External Converter; Accelerated Degradation Testing; Life Time Distribution;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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