Diitao 8PCS TEC1-12710 Semiconductor Refrigeration Tablets Heatsink Thermoelectric Cooler Cooling Plate Cooler Module 12V 6A Peltier Plate Elemente Module 40x40MM

Test Method for RefrigeratorPinch the two sides of the cooling chip with one hand, and press the wires of the cooling chip on the two poles of the battery with the other hand (the red wire is pressed on the positive electrode, and the black wire is pressed on the negative electrode). If one side is slightly cold and the other is slightly warm, it means that the cooling plate can work normally.

TIPThe working state of the cooling part is cooling while heating. When the cooling part is working, the hot surface must dissipate heat well, otherwise it will burn. The heat sink cannot be powered on for more than 2 seconds. The power of the hot and cold exchange must be carried out when the hot and cold side returns to room temperature (generally more than 5 minutes), otherwise it is easy to cause damage to the refrigeration chip circuit and the ceramic plate. When the chip is cooling, the red wire is connected to the positive terminal of the power supply, and the black wire is connected to the negative terminal of the power supply.