Description: Thermoelectric Peltier Refrigeration Cooling System Kit Cooler Semiconductor coolers are a form of solid state cooling that combine both semiconductor technologies with electronic assembly techniques. A whole kit for electronic enthusiasts to DIY semiconductor cooling system. Includes six parts: radiator, radiator fan, fan net, silicone grease, heat insulation gasket and mounting screws. Package Includes: 1 Set Peltier Refrigeration Cooling Fan Kit