Padmashali, Anjan and Kini, Savitha G (2020) A Generalized Methodology for Predicting the Lifetime Performance of LED Luminaire. IEEE Transaction on Electron Devices, 67 (7). pp. 2831-2836. ISSN 0018-9383

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Abstract

—LED luminaires are expected to have a long lifetime, and the reliability analysis needs to be performed forpracticalconditions.Thisarticleproposesa generalized methodology for predicting the lifetime of LED luminaire for the desired/practical conditions. The method involves asingleaccelerateddegradationtest(ADT)andelectrothermal interaction (ETI) multiplication factors to predict lifetime. Using the reliabilitypredictionmodel, the light-output performance of LED luminaire for practical conditions is predicted and validated using experimentation. The reason for the failure of the LED luminaireis identified and is further reasoned with the LED package-level analysis using SEMEDS. The work presented is useful for the lighting industry to predict the reliability and lifetime performance of any luminaire with limited resourcesfor any desired conditions accurately.

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