Long life has been promoted as a key advantage of LEDs, but understanding and communicating how LED products fail and how long they last is essential. The U.S. Department of Energy has published a new SSL Technology Fact Sheet, Lifetime and Reliability, to help users understand typical causes for LED product failures, the difference between lifetime and reliability, and methods for measuring and reporting lifetime and reliability.
LED system performance is more affected by interactions between system components than most conventional lighting systems. The failure of any system component—not just the array of LED packages, but also the electronics, thermal management, optics, wires, connectors, or seals, for example—can lead to product failure.
Check it out here.
