IES TM-21-21

Technical Memorandum: Projecting Long-Term Luminous, Photon, and Radiant Flux Maintenance of LED Light Sources

Illuminating Engineering Society , 2021

Publisher: IES

File Format: PDF

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This document provides recommendations for projecting flux maintenance of LED light sources using data obtained when testing them per ANSI/IES LM-80.

This method shall not be used to project lumen, photon or radiant flux maintenance below 70%.

Published: 2021

Language: English

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