Features: brand new and high quality Made of high quality material, durable and practical to use. Suitable for small space cooling, air cooling dehumidification, semiconductor refrigeration learning for theory, etc. Simple operation and strong practicality. Cooling quickly, the effect is outstanding. The cooling effect depends on the size of the cooling space, ambient temperature, heat insulation, sealing capacity, etc. Semiconductor coolers are a form of solid state cooling that combines semiconductor technology and electronic assembly technology. Specifications: Material: ABS + Aluminum alloy Power: 72W Working current: 6A Working voltage: 12V(can also use 12V 10A power supply for quick freezing.) Red line: "+", black line: "-" Item Size: approx. 175 x 100 x 98 mm/6.88x3.93x3.85in Note: Please allow 0-1cm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package includes: 1PC x Semiconductor Refrigeration Cooler