US ORNL laboratory invents graphite foam heat sink to extend high brightness LED life

Researchers at Oak Ridge National Laboratory (ORNL) have successfully used a graphite foam material to solve the problem of long life reduction of high-brightness LEDs due to the high temperature environment, and exclusively licensed the graphite foam technology to the experiment. The company is independent of the company - LED North America.

ORNL said that reducing the operating temperature of the LED by ten degrees will double its service life; so local governments can replace existing mercury street lights with LED lights to save millions of dollars in electricity bills without There is a risk of immature technology that the LED lamp may overheat.

It is reported that graphite foam is similar to foamed plastic, light and porous, with a density of 25%, which makes the material easy to make into a heat sink. In the future, LED North America intends to provide a new generation of street and garage lighting solutions using low temperature graphite foam fins.

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