With the widespread use of semiconductor refrigeration, more and more DIY enthusiasts have become interested in it. How to solve the heat dissipation problem in refrigeration applications is a problem worth exploring. To solve this problem, this product may be just right for your taste.Features:1. High quality use with a maximum power of 140 W.2. Includes a large radiator, 2 cooling fans, 2 large fans and 2 cold junction modules.3. Easy to install and easy to use.4. Suitable for DIY semiconductor refrigeration system electronics enthusiasts.5. The semiconductor cooler is a solid-state refrigeration technology that combines semiconductor technology and electronic assembly technology.Specification:Voltage: 12VCurrent: 14APower: 140WConduction module size (1pc): approx. 60 * 43 * 25mm / 2.4 * 1.7 * 1inRadiator size: approx. 200 * 115 * 85mm / 7.9 * 4.5 * 3.3inLarge fan size (1pc): approx. 90 * 90 * 25mm / 3.5 * 3.5 * 1inSmall fan size (1pc): approx. 40 * 40 * 10mm / 1.6 * 1.6 * 0.4inProduct size: approx. 200 * 115 * 85mm / 7.9 * 4.5 * 3.3 inPackage list:1 * Refrigeration RadiatorNote:1. The semiconductor cooler is a solid-state refrigeration technology that combines semiconductor technology and electronic assembly technology.2. When the temperature is below -25 C, the conduction cooling module will frost.3. Does not contain DC power, please prepare yourself..