LED technology is known for its high efficiency and extraordinary long lifetime of over 50,000
hours. But given that people are choosing LED luminaires because of their long product life, how
we can distinguish between LED luminaries and identify the reputable manufacturers?
Traditional light sources typically quote lifetime as the point at which most sample of lights (over
50%) will have failed. That is catastrophic failure.
LEDs are different. Due to the material properties of LED, they rarely fail completely; rather their
light output slowly decreases over time in a process known as lumen depreciation. In this case, we
introduce a measure of the LED degradation and Raytec rate our lights to L70/B50 to better
represent the operating lifetime of LED