Using this TEC TEC1-12706 Thermoelectric cooler or thermoelectric Peltier get ice cold in minutes or heat to boiling by simply reversing the polarity.TEC12706 or TEC 12706  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.