Recently, researchers at Oak Ridge National Laboratory (ORNL) in the United States have successfully used a graphite foam material to solve the problem of shortened lifespan of high-brightness LEDs due to operating high-temperature environments, and granted exclusive authorization for the graphite foam technology. The company's independent company - LED North America.
ORNL said that reducing the operating temperature of LEDs by 10 degrees will double its service life; so local governments can replace their existing mercury street lamps with LED lamps to save up to millions of dollars in electricity costs. The risk of immaturity of the technology that LED lamps may overheat.
It is reported that graphite foam is similar to foam plastic, light weight and porous, with a density of 25%, which makes it easy to make the material into heat sinks. In the future, LED North America intends to provide a new generation of street lamp and garage lamp solutions by using cryogenic graphite foam heat sinks.
ORNL said that reducing the operating temperature of LEDs by 10 degrees will double its service life; so local governments can replace their existing mercury street lamps with LED lamps to save up to millions of dollars in electricity costs. The risk of immaturity of the technology that LED lamps may overheat.
It is reported that graphite foam is similar to foam plastic, light weight and porous, with a density of 25%, which makes it easy to make the material into heat sinks. In the future, LED North America intends to provide a new generation of street lamp and garage lamp solutions by using cryogenic graphite foam heat sinks.
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