Lines:Noneand Easy to install and useReverse the polarity to get ice cold in minutes or heat to boilingUsed for many applications from CPU coolers to alternate power sourcesGreat for your own custom car drink warmer/cooler as wellIncorporate both semiconductor technologies and electronic assembly techniquesSemiconductor material is sandwiched between the ceramic platesHave no moving partsType number: TEC1-12709Couples: 127Umax (V): 15.2VI max (A): 9ATmax (degree Celsius): 67Dimensions: 40mm x 40mm x 3.5mmPower cable: 32cmMax.power consumption: 136.8WPackage Include:1 x Thermoelectric CoolerNote:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.