Feature:1. This product is a cold plate to cool down, and contains semiconductor cooling fins, which are dissipated by a fan, and the cold plate to cool2. The drop temperature of small products can be directly placed on the cold plate, or holes can be made on the heat sink aluminum, and the cold surface can be directly attached to the surface that needs to be cooled. The contact temperature of the cold surface should not exceed 70 degrees3. The heat dissipation method blows from the outside to the inside, and the radiator has on both sides. If it is placed flat, the bottom needs to be suspended, if used on the side, it needs to keep a good vent4. This is an advanced semiconductor cooler, come with super power and long-term durability5. The large-area cooling block has a larger contact area with the air, and the heat dissipation effect is goodHow to Use:1. Both the fan and the cooling plate are powered by 12v, just connect a power supply2. Find a suitable power supply, connect the red wire to the positive pole, and the black wire to the negative pole, then you can directly power onSpecification:Item Type: Refrigeration Cooling System KitModel: XD-7082Material: Heat-dissipating aluminumPurpose: Heat dissipation and coolingPower Supply Voltage: 12VJack Type: Bare wireCooling Method: Fan coolingProduct Size(LxWxH): Approx. 90 x 90 x 75mm / 3.5 x 3.5 x 3inPackage List:1 x Refrigeration Cooling System KitNote:Remember that this product cannot be directly connected to 220v voltage. If it is connected to the wrong voltage or damaged, please handle it by yourself. No refund or replacement.