1Air cooling device, it is not used to cool the water but for heat dissipation by means of water circulation. 2Can be used in small space cooling, pet air conditioner, learning the principle of semiconductor refrigeration and more. 3Refrigeration effect depends on the size of the cooling space, ambient temperature, heat insulation, sealability, etc. 4With strong resistance to low temperature, durable with long service life. 5Simple structure but good practicability.Features:1. Air cooling device, it is not used tocool the water but for heat dissipation by means of water circulation.2. Can be used in small space cooling, pet airconditioner, learning the principle of semiconductor refrigeration and more.3. Refrigeration effect depends on the size of the cooling space,ambient temperature, heat insulation, sealability, etc.4. With strong resistance to lowtemperature, durable with long service life.5. Simple structure but good practicability.Specification:Condition:100% brand newRedWire: "+"BlackWire: "-" Optional Type 4 chip cooler 6 chip cooler Power Supply DC 12V 24A DC 12V 36A Power 280W 420W Size 12*6.6*9.5cm /4.72*2.60*3.74in16*6.6*9.5cm /6.30*2.60*3.74inWeight 611g/21.5oz841g/29.6oz Packagelist:1 *CoolerNote: