IES LM-80

ES LM-80 2008-SEP-22 Measurng Lumen Mantenance of LED Lght Sources

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This approved method is one of a continuing series of IESNA Approved Methods, which are written to permit reliable comparison of test results among laboratories by establishing uniform test methods. It addresses the measurement of lumen maintenance testing for LED light sources designed and certified to meet lighting industry standards.

This document provides the methods of the measurement of lumen maintenance of sources including LED packages, arrays and modules only. Lumen maintenance is a characteristic measured under controlled conditions. Performance in a particular application may be different. This approved method does not provide guidance or make any recommendation regarding predictive estimations or extrapolation for lumen maintenance beyond the limits of the lumen maintenance determined from actual measurements.

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