Features: 1DUAL USE: You can reverse the polarity of the semiconductor chip to get ice cold in minutes or heat to boiling. 2ADVANCED TECHNOLOGY: This semiconductor cooler chip incorporates both semiconductor technologies and electronic assembly techniques safe and reliable for long term use. 3WIDE APPLICATION: The cooler tablet is used for many applications from CPU coolers to alternate power sources. 4FOR DIY: With the help of the cooler tablet you can also diy your own custom car drink warmer cooler as well! Use it at will! 5EASY INSTALLATION: This semiconductor cooler chip is easy to install and you can quickly put it into use. Specification: Item Type: Semiconductor Cooler ChipMaterial: Semiconductor 704 Silicone RubberProduct Size: Approx. 40 x 40mm / 1.57 x 1.57inCooling Power: 114W (too high temperature of the cooling surface will reduce the cooling power)Assembly Pressure: 85N/cmInternal Resistance: 1.0 to 1.1 Component Pairs: 127 pairsWorking Environment: Temperature range - 55 to 83 (high ambient temperature will directly affect the refrigeration efficiency)Device Characteristics: Red wire positive pole black wire negative poleWeight: Approx. 24 g / 0.8 oz Package List: 1 xSemiconductor Cooler Chip