Reliability and service life of leds

Leds have an expected service life of 50,000 hours, compared with 20,000 hours for halogen tungsten lamps and 3,000 hours for tungsten incandescent lamps. Compared with incandescent bulbs, leds have a robust structure that is less susceptible to vibration and does not significantly reduce the brightness of the light output during use. Lighting solutions based on multiple leds also have the benefit of "redundancy", allowing lighting fixtures to continue to be used even if one LED fails.
The correct use of LED(especially the correct control of LED temperature) can effectively prolong the life expectancy of LED. Conversely, leds are easily damaged if the temperature is too high. The use of LEDS in car lighting still involves many legal definitions. Most countries have a clear definition of a brake light or headlight failure - light on or off. However, for multiple LED lights, it is difficult to accurately define whether the lights have been damaged. Manufacturers and legislators are working to define how leds will be used.