Virgin aluminum heatsink * Materials: Aluminum * Aluminum Heatsink Size: 5.9 x 2.36 x 0.7 inch / 150 x 60 x 18mm (L*W*H) * Used for: Various mini DC converter circuit board, LED, Power IC, Transistor etc. * A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. * Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature. * Improve the environment (temperature around the device, as well as the flow rate of the air) * Note: 1. Please check the specification table and make sure that the size of the heatsink fits that of your component. Thank You! 2. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. Weight: 6.95 oz / 197 gr per piece