SS ROBOTICS ( Pack of 1) TEC1-12706 12V 6A TEC Thermoelectric Cooler Peltier Temperature Sensor and Controller Electronic Hobby Kit

(TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side gets cool. Therefore, they can be used to either warm something up or cool something down, depending on which side you use. This Peltier works very well as long as you remove the heat from the hot side. After turning on the device, the hot side will heat quickly, the cold side will cool quickly. If you do not remove the heat from the hot side (with a heat sink or other device), the Peltier will quickly reach stasis and do nothing. We recommend using an old computer CPU heatsink or other block of metal to pull heat from the hot side. We also have another much similar product of high quality, check it out here. Thermoelectric Cooler Features: Max power consumption: 60 Watts Working Termperature: -40c to 80c Max Voltage Input: 12V Max Current: 6A Size: 40*40*3.9mm Color: White. If you do not remove the heat from the hot side (with a heat sink or other device), the Peltier will quickly reach stasis and do nothing. We recommend using an old computer CPU heatsink or other block of metal to pull heat from the hot side. Therefore, they can be used to either warm something up or cool something down, depending on which side you use.