With the wide applications of semiconductor cooling, more and more DIY enthusiasts are interested in it. It's a question that how to make refrigerating capacity to a more great extent in water cooling applications. This DIY kit could be just to your taste to solve this problem. Note: 1. The conduction cool module can frost when the temperature is under -25 C. 2. TEC1-12706: one side with words is the refrigeration side, the other side is heat dissipation side. 3. Must install heat sink or water-cooled radiator on the heat dissipation side; otherwise will burn the Peltier. 4. The DC power is not included in this kit, please prepare it by yourself. Specifications: Semiconductor Chilling Plate: TEC1-12706 Size: 40 * 40 * 3.75mm Internal Resistance: 2.1~2.4 Omega; Max. Temperature Difference: 67 C Above Rated Voltage: 12V(Vmax. 15V, Starting Current 5.8A) Working Current: Imax.=4~4.6A(Rated 12V) Refrigeration Power: Max. 50~60W Working Environment: -55~83 C Sealing Process: Standard 704 silicon rubber sealing all sides Fan: DC 12V Large Fan Size: 90 * 90 * 25mm Small Fan Size: 40 * 40 * 10mm Conduction Module Size: 60 * 45 * 21mm Radiator Size: 116 * 100 * 23mm Package Size: 19.5 * 13 * 5.5cm / 7.67 * 5.12 * 2.16in Package Weight: 468g / 16.53oz Package List: 1 * TEC1-12706 2 * Fans(Large and Small) 1 * Radiator 1 * Outer Cover for Fan 1 * Conduction Module 1 * Thermal Grease 1 * Thermal Insulation Gasket 1 * Pack of Screws