Feature 1DC 12V: Thermoelectric cooling system has a complete sealed structure to isolate the moisture in the air, DC 12V, 72W maximum power. 2High Efficiency: Semiconductor cooler has high cooling efficiency and is equipped with a chiller for better heat dissipation, which can easily cool down in minutes. 3Application: DIY refrigeration semiconductor for pet bed cooling, flat panel cooling, test bench, carton, pantry, wine cellar, etc. 4Easy to Install: Semiconductor heatsink for computer heatsink, small space cooling, no noise, no vibration, no refrigerant, easy to install. 5Premium Material: Semiconductor heatsink is made of aluminum and TEC1 12706 semiconductor excitation plate for durability.Item Type:SemiconductorCoolingSystemKitMaterial: Aluminum Alloy, ABS .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Cold End Aluminum Block1 x Silver Colored Plane Water Cooling Head1 x Small Fan1 x Aluminum Strip1 x 12706 Cooling Chip2 x Silicone Grease2 x Aluminum Plate Screws4 x Fan Screws