LM80 is LED Standard. It is the Illuminating Engineering Society of North America (IESNA) approved standard for measuring lumen maintenance of LED light sources. LM-80-08 apply to the LED package, array, or module alone, not a complete system, it is testing a component level. The standard does not provide guidance for extrapolation of testing results.
Who can perform testing?
LM-80-08 testing should be performed by EPA recognized Laboratories. Only reports from recognized laboratories are relevant. This standard is used for Department Of Energy (DOE) ENERGY STAR program early qualification in conjunction with other reports. 3535 LED Modules use LED with available LM-80-08 test report from recognized laboratory.
What does it provide?
The testing report issued according to a standard format will provide luminous flux for a given current over a 6,000 hours period with interval measurements. Luminous flux will be measure for 3 different LED case temperatures: 55ºC, 85ºC and a third temperature to be selected by manufacturer. Besides, the lumen maintenance, the chromaticity shifts over the measured period.
What is the relationship among LM79,LM80 and America Energy Star?
America Energy Star requirements in a large number of light and color parameters, and its test methods are cited as the LM-79 standard test method
for LM-80, it is the standard of led maintance and color maintance. it doesn’t mean no need to do the lumen maintenance with LM80, it also need to be tested to verify.