specifications:
- Power supply: 2 V (max)
- The input current: 8.5 A
- Maximum difference in temperature: 68 ° C
- Dimensions: 15 x 15 x 3.3 mm
- One side generates heat and produces cold side
more about TEC: http://2r-he.blogspot.com/2010/08/peltier-thermoelectric-cooler.html