Feature: 1. FOR INDUSTRIAL EQUIPMENT USE: The cooler is suitable for most industrial equipment refrigeration systems, and the installation is simple and convenient 2. SOLID STATE COOLING WITH GOOD COOLING: The semiconductor cooler adopt the form of solid state cooling, which combines semiconductor technology and electronic assembly technology, and has a good cooling effect 3. FAST COOLING: Thermoelectric refrigeration cooling system features a large cooling block for rapid cooling with more air exposure 4. CORROSION RESISTANT ALUMINUM ALLOY: Adopt good quality aluminum alloy material, light weight, possess good strength and good corrosion resistance 5. WITH COMPLETE ACCESSORIES: Thermoelectric refrigeration cooling system can be used as DIY refrigeration equipment, complete accessories for easy installation and use Specification: Item Type: Thermoelectric Refrigeration Cooling System Material: ABS, aluminum alloy Use: DIY refrigeration equipment Basic Parameters: Working Voltage: DC 12V. Package List: 2 x Cooling Fan2 x Heat Sink1 x Cooling Block2 x Ceramic Heat Sink10 x Screw2 x Plastic Gasket2 x Gasket2 x Nut1 x User Manual Note: The radiator heat sink must be installed when the power is turned on, if the heat sink is not assembled, the Peltier heat sink will be burned out.