Keep the heat down with a peltier module. These unique electronic coolers can generate a temperature differential when powered. Put simply, apply 12V 5a power supply to the red (positive) and black (negative) wires and one side will get frosty cold while the other side gets hot. For best results, youll need to wick away that heat (otherwise the cold side will slowly get warmer). a fan and/or heat sink is ideal. The unit comes fully assembled with the peltier module, heat sink and fan. This is a 12V module, and is rated for up to 72 Watts max (up to 14V/6a) but when used with a regulated 12V output, they dont draw much more than 5 Amps, so we suggest our 12V/5a power adapter for use. (You will need to cut the connector and expose the wires or use a power jack to screw terminal adapter.). Max current: 6a at 12V. Suggested voltage range: 12V to 15.5V. Maximum temperature differential (tmax at QC = 0): 66°c. Maximum cooling power (QC max.) at 15.3V: 97W. 127 peltier elements. DC resistance: 2.5 ohms. Silicone seal. Peltier module: 1.6 inch x 1.6 inch x 0.13 inch (40 x 40 x 3.5 mm). aluminum plate: 1.6 inch x 2.4 inch (40 x 60 mm). heat sink: 3.5 inch x 3.5 inch (90 x 90 mm).