New Reduced price! IES TM-21-19 View larger

IES TM-21-19

M00000062

New product

IES TM-21-19 Technical Memorandum: Projecting Long-Term Lumen, Photon, and Radiant Flux Maintenance of LED Light Sources

standard by Illuminating Engineering Society, 2019

More details

In stock

$21.50

-57%

$50.00

More info

Full Description

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%.