1Good Refrigeration Effect: 12V refrigeration radiators has a high refrigeration efficiency, equipped with better cooling fans with better heat dissipation, can easily cool down in a few minutes without noise, no vibration, no refrigerant. 2Good Sealing: DIY refrigeration semiconductor adopts a complete sealing structure, isolation of water in the air, good sealing. 3Durable Material: Semiconductor refrigeration set is made of aluminum, TEC1 12706 semiconductor cold plate, durable. 4Small Size: Semiconductor refrigeration cooling system uses compact design to save space, can be installed anywhere, easy to install. 5Wide Application: Thermoelectric cooling system is suitable for computer heat sinks, small space cooling, for pet bed cooling, test table, carton, tableware room, wine cellar, etc. Item Type: Semiconductor Refrigeration Cooling System Material: Aluminum Alloy,ABS Voltage: 12V Power: 50W The Size of the Whole Machine:Approx. 10 x 9.5 x 9cm / 3.9 x 3.7 x 3.5in(Hand Measured Error) Refrigeration Effect: Frost Below 26 Cold End Fan: Yes 1 x Semiconductor Refrigeration Cooling System Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.