Vktech New TES1-12704 12V Heatsink Thermoelectric Cooler Peltier 30mm*30mm (1pc) Solid state, vibration free, noise-free Model number: TES1-12704 Cable length: 20cm Dimension: Approx.30mm x 30mm x 3.2mm Can be used in refrigerator,Portable cooling car box,Liquid Cooling,Temperature stabilizer etc