2008 LED standards: ANSI C78.377 (chromaticity), LM-79 (luminous flux) and LM-80 (lumen maintenance).

According to LEDs Magazine, "2008 is likely to be remembered as the Year of LED Standards, due to the publication of ANSI C78.377 (chromaticity), LM-79 (luminous flux) and LM-80 (lumen maintenance)."

Reporting on these standards trends is Kevin Dowling is the VP of innovation at Philips Color Kinetics (www.colorkinetics.com) and has been active in SSL for over 10 years. He founded and chairs the IES SSL Committee and the NEMA SSL Committee, and is a past Chairman of the Next Generation Lighting Industry Alliance.

The LM-80 standard describes the measurement of lumen maintenance of LED light sources including LED packages, modules and arrays (but not luminaires). Prediction of lifetime beyond the testing period is not included in the standard.

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