Features: brand new and high quality Semiconductor coolers are a form of solid state cooling that incorporates both semiconductor Technologies and electronic assembly techniques.Cooling quickly, outstanding effect. Stable and practical. Easy to operate. Durable in use. Refrigeration effect depends on the size of the cooling space, ambient temperature, heat insulation, seal ability, etc. Application for small space cooling, air cooling dehumidification, semiconductor refrigeration learning theory etc. Specifications: Material: ABS + Aluminum alloy Power: 72W Working current: 6A Working voltage: 12V Red line: "+", black line: "-" Item Size: approx. 175 x 100 x 98 mm/6.88x3.93x3.85in Can use 12V 10A power supply, frozen fast 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