Geekcreit? TEC1-12705 Thermoelectric Peltier Refrigeration Coolor Fan With 220V EU Power SupplySpecification: Semiconductor coolers are a form of solid state cooling that incorporates both semiconductor Technologies and electronic assembly techniques. Peltier TEC1 12705. Must fitting Radiator Heartsink when Power ON, not resposible for Burn Peltier if Heartsink is not assemble. The item is finished kit. The lowest temperature it can reach depends on the use of space and the temperature of the environment. Generally speaking, the smaller the