We can quickly identify from three aspects: first, take a domestic example, first check whether the CCC certificate of the power adapter is valid; second, carefully check the label of the power adapter; third, check the interface of the power adapter and plug.
China's control of power adapters falls within the scope of the national compulsory certification catalog. Therefore, the regular power adapters circulating in the domestic market have passed the national compulsory certification. When we buy the power adapter, we first look at the nameplate indicating whether the CCC logo is printed. In addition, we can check the certificate model of the product online Wait, if the product has passed CCC certification, then we can choose this power adapter.
When the first step is completed, we look at the interface and plug. First of all, make sure that the size of the DC head is consistent with the device you are using. This is the most basic. If the size does not match, then there is no way to use it. Then look at the DC Will there be any loosening of the head, because if the interface of the power adapter is unstable, the current of the whole machine will be unstable, which will damage the equipment and cause a safety accident.
The last point, look at the label of the switching power supply. In fact, this point is similar to the first point, but what we confirm is the parameter. All the information of a qualified power adapter will be indicated on the nameplate, such as voltage, current, energy efficiency, and safety. The description, manufacturer, etc., will be marked correspondingly, and the information will be very complete.
