Description: Made of high quality Aluminum. Reduce the risk of hardware failure due to overheating. Maximize surface area Designed in contact with the cooling air. Anodized black enhances heat dissipation, processing broken fine teeth to enhance heat dissipation. Used for LED chip 50W-100W heat dissipation, module semiconductor heat sink Specification: Product Name: Heat Sink Material: Aluminium Color: Black Size: 69x37x200mm / 2.72*1.46*7.87'' Package Includes: 2Pcs Aluminum Heat Sink