Description Are you looking for a professional, yet affordable cooling sheet? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional cooling sheet must meet your needs. It is one of the best choices for you. Features -Color:As Shown-Material:Ceramic, aluminium alloy, rubber-Size:4.00X4.00X0.40cm/1.57X1.57X0.16in-Rated Voltage: 12V.-Rated Current: 4A.-Refrigeratory capacity: 70.3W.-Temperature difference: 68℃/154.4℉ -The cooling piece is incredibly user-friendly and can be easily installed and used.-It is made primarily of semiconductor material sandwiched between ceramic plates, which means it has no moving parts and is highly durable.-To ensure optimal performance and prevent burning, it is essential to use these devices in conjunction with a heat sink.-Each device undergoes rigorous inspection and testing to ensure quality and reliability.-Applying silicone to the hot and cold sides of the cooling plate is a simple and effective way to optimize its performance.Packing list: 1 x peltier module