IES-LM-80
Approved Method for Measuring Luminous Flux and Colour Maintenance of LED Packages, Arrays and Modules
Defines the lumen maintenance test method for LED sources measuring luminous flux depreciation over a minimum 6,000 hours at controlled temperatures. Data feeds into TM-21 lifetime projection models for LED product longevity claims.
- Document
- IES LM-80-20 (2020)
- URL
- https://www.ies.org/standards/ies-standards-in-publication/
- Label
- Standard
- Keywords
- LED lumen maintenance luminous flux depreciation LED lifetime TM-21 LED reliability lumen depreciation testing
Domain: Lighting and Photometry · Standard