The power adapter is a power supply change device for small portable electronic equipment and electronic appliances. Generally, it is composed of shell, transformer, inductor, capacitor, control IC, PCB board and other components. It works by converting an AC input to a DC output. China power supply adapter, colloquially, also known as "external power supply"

1: Application field
China power supply adapters are widely used in home, IT, lighting, medical, home appliances, etc. Such as security cameras, set-top boxes, routers, LED light bars, massagers and other equipment
2: Can automatically detect 100-240V AC (50/60Hz)
Most China power supply adapters can automatically detect 100~240V AC (50/60Hz), which is almost applicable worldwide.
3: Reduce the volume and weight of the host
The China power supply adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. It externally connects the power supply to the host with a line, which can reduce the size and weight of the host. Only a few devices and electrical appliances have built-in power in the host. Inside.
4: "nameplate" of China power supply adapter
The inside of China power supply adapter is composed of a power transformer and a rectifier circuit. There is a nameplate on the power supply adapter, which indicates the power, input and output voltage, and current. Among them, special attention should be paid to the range of input voltage.