What Can Affect the LED Light Lefespan?

Date：2016-07-08

What Can Affect the LED Light Lefespan?

Date: 2016.7.8 CIYLED

       There are three things which can affect the junction temperature of LED's: drive current, thermal path and ambient temperature. In general, the higher the drive current, the greater the heat generated at the junction. Heat must be moved away from the junction in order to maintain expected light output, lifespan and color. The amount of heat that can be removed depends upon the ambient temperature and the design of the thermal path from the junction to the surroundings. Typically the junction temperature should be maintained below 120°C.

       If choose lifespan of 10,000 hours @105 degrees  high-temperature electrolytic capacitors, according to the regular lifespan estimation formula of electrolytic capacitor " Temperature reducing every 10 degrees, doubling the lifespan"

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