- SEMICONDUCTOR REFRIGERATION KIT: This solid-state cooling solution utilizes advanced semiconductor technology and electronic assembly techniques. It offers efficient heat removal, ensuring rapid cooling performance in a compact design. - WIDE COMPATIBILITY: Ideal for small space cooling, air cooling dehumidification, and educational projects in semiconductor refrigeration. This DIY single-core cooler can achieve a temperature drop of 10-12 degrees in just 30 minutes, making it suitable for cooling facial masks, fruits, beverages, and beer. The refrigeration effect varies based on the cooling space size, ambient temperature, insulation quality, and sealing effectiveness. - HIGH EFFICIENCY: Featuring a dual hollow copper design, this thermoelectric cooler operates without refrigerants, enabling quick and efficient heat removal from the air. It combines refrigeration and dehumidification functions, delivering compact yet powerful performance. - WORKING VOLTAGE: Operates on a DC 12V power supply, ensuring low noise and vibration for a convenient user experience. A separate power supply is required for operation. For precise temperature monitoring, consider adding a digital display temperature device.