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A Number of Key SSL Standards and Test Methods are Still in Development

One of these is IES TM-28, "Prediction of Lumen Maintenance of LED Lamps and Luminaires," which is comparable to TM-21 but at a fixture level and is intended to lighten the testing burden on manufacturers by enabling them to use LM-80 data from the LEDs to help predict the lumen maintenance of complete lamps and luminaires. Another is ANSLG/ANSI C82.XX1, "LED Drivers Reliability," which helps address the reliability of the key driver element in a lamp or luminaire. Still another is a revision of UL 1598C, "Light-Emitting Diode (LED) Retrofit Luminaire Conversion Kits," a product safety standard that addresses LED linear replacement lamps.