2013newestseller 12v Tec1-12706 Heatsink Thermoelectric Cooler Fitted with 6-inch insulated leads Each device is full inspected and tested These devices must be used in conjunction with a heat sink to avoid burned Get ice cold in minutes or heat to boiling by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even for your own custom car drink warmer/cooler Since they consist primarily of semiconductor material sandwiched between ceramic plates and have no moving parts