Features: Semiconductor refrigeration 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 refrigeration learning theory, research solutions developed cooling equipment planing. The cooling effect depends on the size of the cooling space, ambient temperature, adiabatic, sealing etc. Surface large fins design, and straight tube radiating, quick heat dissipation. Stable work and low noise, no refrigerant required. Specifications: Type: 110V US plug Weight: 789g Package included: 1 x Semiconductor Refrigeration 1 x power supply 1 x plug Note: Please kindly make a note if you need any adapter. 1、Semiconductor refrigeration is a kind of refrigeration technology which produces negative thermal resistance, which is characterized by non-moving parts and high reliability 2、Suitable for small space cooling, semiconductor refrigeration learning theory, research solutions developed cooling equipment planing 3、The cooling effect depends on the size of the cooling space, ambient temperature, adiabatic, sealing etc 4、Stable work and low noise, no refrigerant required. 5、Surface large fins design, and straight tube radiating, quick heat dissipation