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This invention is a metal porous medium heat sink for LED lamp; the cooling fins can be made of metal foam material, or metal fins and metal foam material. The cooling air is formed and produces flow effect of natural convection inside the metal foam material and between cooling fins based on the special porous structure of metal foam material. The porous structure will enlarge the heat sinking area and natural convection flow path greatly. The overall heat-sinking capability is enhanced effectively, and the heat sink weight is reduced practically by more than 90%, meanwhile the appearance is special. Hence, this product is a novel design
Chienkuo Technology University