1、WORKING PRINCIPLE: Incorporate semiconductor and electronic assembly techniques, reverse the polarity to get ice cold in minutes or heat to boiling. 2、APPLICABLE SCENES: Used for many applications from CPU coolers to alternate power sources, great for your own custom car drink warmer or cooler as well. 3、WORK PARAMETERS: The power of the semiconductor cooling module is 36W, the rated voltage is DC12V, and the internal resistance is 3.0-3.3Ω. 4、EASY CONNECTION: The semiconductor heatsink is equipped with wire, about 300mm length, easy to connect and use, which is stable and reliable. 5、DURABLE MATERIAL: The heatsink is made of excellent semiconductor and 704 silicone rubber, ensuring stable performance and high cooling efficiency.