Features: Trinuclear Thermoelectric Peltier Refrigeration Air Cooling System, great for small space cooling. No noise and vibration, no refrigerant required. Simple operation and strong practicability. Easy to operate and adjust. Equipped with cool fan for better heat dissipation. Mainly used for coolingsmall space that is under 0.025cubic meter, such aspet bed, laptop, etc. Specifications: Material: Metal Power: 180W (Max) Refrigeration power: 126W Maximum current: 15A Stable current: 11A Item size: 300*120*100mm Item weight: 1146g Package size: 35*15*13cm/13.77*5.9*5.11in Package weight: 1200g Note: 1. Semiconductor coolers are a form of solid state cooling that incorporates both semiconductor technologies and electronic assembly techniques. 2. When used in a 22 degree environment, the cold end does not open the fan or does not circulate, and the cold end can be frosted after 10-20 minutes of starting. 3. The DC power is not included, please prepare it by yourself. Packing list: 1* Thermoelectric Refrigeration