IES TM-21
TECHNICAL MEMORANDUM: PROJECTING LONG-TERM LUMEN, PHOTON, AND RADIANT FLUX MAINTENANCE OF LED LIGHT SOURCES
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| Organization: | IES |
| Publication Date: | 11 October 2019 |
| Status: | active |
| Page Count: | 55 |
scope:
This document provides recommendations for projecting flux maintenance of LED light sources using data obtained when testing them per ANSI/IES LM-80-15, Approved Method for Measuring Luminous Flux and Color Maintenance of LED Packages, Arrays and Modules.
This method shall not be used to project lumen, photon or radiant flux maintenance below 70%.
Document History
May 26, 2021
TECHNICAL MEMORANDUM: PROJECTING LONG-TERM LUMINOUS, PHOTON, AND RADIANT FLUX MAINTENANCE OF LED LIGHT SOURCES
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,...
IES TM-21
October 11, 2019
TECHNICAL MEMORANDUM: PROJECTING LONG-TERM LUMEN, PHOTON, AND RADIANT FLUX MAINTENANCE OF LED LIGHT SOURCES
This document provides recommendations for projecting flux maintenance of LED light sources using data obtained when testing them per ANSI/IES LM-80-15, Approved Method for Measuring Luminous Flux...
October 5, 2015
Projecting Long Term Lumen Maintenance of LED Light Sources
A description is not available for this item.
July 25, 2011
Projecting Long Term Lumen Maintenance of LED Light Sources
This document provides recommendations for projecting long term lumen maintenance of LED light sources using data obtained when testing them per IES LM-80-08, "IES Approved Method for Measuring Lumen...