Features 【High Efficiency】: Simply reverse the polarity to cool or heat to boiling in minutes, for a variety of applications from cpu coolers to backup power supplies, even for your own applications, operating temperature range of -40 °c to 90°c. 【Reliable Quality】: The thermoelectric cooler combines semiconductor technology and electronic assembly technology. Each piece of equipment has been fully inspected and tested, with compact structure, excellent performance, reliability and easy installation. 【Material Composition】: Equipped with 6-inch insulated leads. 【Widely Applicable】: Can be used in multiple applications from cpu coolers to replacement power supplies, and even your own custom car beverage warmer/cooler. 【Precautions】: Since they are mainly composed of semiconducting material sandwiched between ceramic plates and have no moving parts, these devices must be used with a heat sink or thermally conductive compound to avoid burning out. Features: 1.Simply reverse the polarity to cool or heat to boiling in minutes, for a variety of applications from cpu coolers to backup power supplies, even for your own applications, operating temperature range of -40 °c to 90°c. 2.The thermoelectric cooler combines semiconductor technology and electronic assembly technology. Each piece of equipment has been fully inspected and tested, with compact structure, excellent performance, reliability and easy installation. 3.Equipped with 6-inch insulated leads. 4.Can be used in multiple applications from cpu coolers to replacement power supplies, and even your own custom car beverage warmer/cooler. 5.Since they are mainly composed of semiconducting material sandwiched between ceramic plates and have no moving parts, these devices must be used with a heat sink or thermally conductive compound to avoid burning out. Specifications: Model: TEC1-12709 Couples: 127 Size: 40mm x 40mm x 3.2mm Operates from 0~15.4V DC and 0~9A Rated Voltage: 12V Rated Current: 9A Operates Temperature: -40℃ to 90℃ Maximum Cooling Power: 98.5 W (Th=50℃), 88.7 W (Th=27℃) Maximum Temperature Difference: 75 Cel (Th=50℃), 68 Cel (Th=27℃) Original box: NO Color: White Package: 1 x TEC1-12709 Heatsink Thermoelectric Cooler Cooling Peltier Plate Module Package List