Features:Semiconductorrefrigeration is a kind of refrigeration technology which produces negative thermal resistance, which is characterized by non-moving parts and high reliability.Suitable for small space cooling, semiconductor refrigerationlearning theory, research solutions developed cooling equipment planing.The cooling effect depends on the size of the cooling space, ambient temperature, adiabatic, sealing etc. Can be used as dual-core cooling, air cooling device, cooling equipment.Stable work and lownoise, no refrigerant required.Specification:Material: aluminum + plastic fanVoltage: 220VPlug: EU plugCooling core: 2* TEC1-12705Length: 20cm / 7.87inWeight: Approx.1622g/57.2ozWiring method:V+: All red wire (any V+is ok)V-: All black wire(any V-is ok)L N: Power cablePackage list:1 x Dual-core Semiconductor Refrigeration1 x Power supply1 x EU plug cableNote: Please kindly make a note if you need any adapter. .