Warning: Please do the work before powered on， 1. Install a heat sink for the cooling plate, with heat dissipating silicone grease or phase change material (installed on the heating side) Good heat dissipation is a necessary condition for normal operation. 2. If there are electronic components around the refrigeration unit, please be moisture-proof (extremely low temperatures can cause frost) to avoid component damage. 3. Please input voltage within the specified range Each device is full inspected and tested Fitted with 6-inch insulated leads Perfect for: CPU Cooling, video card, NANO Reef, laser diode, CCD camera, picnic cooler, beverage cooler