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Strictly speaking, a Wi-Fi Wall Switch is an electrical control device that integrates a wireless network communication module into a traditional wall switch. A Wi-Fi Wall Switch is not simply a "button with network functionality," but rather an electrical control terminal with network connectivity.

"DP" is an abbreviation for Double Pole, commonly referred to in Chinese as: Double-pole wall switch This means: • When the wall switch operates, • it disconnects both wires simultaneously • typically the live wire and the neutral wire This is the fundamental difference between a DP wall switch and a regular single-pole (SP) wall switch.

In some standard systems, 13A plugs are equipped with internal fuses (such as 3A, 5A, 13A). If: • The appliance does attempt to draw more than 13A of current under certain conditions • The fuse inside the plug may blow • Causing the appliance to malfunction

This is the most pressing question for most users and is the most common situation in Chinese household electricity environments. According to the formula: Power = 220V × 16A = 3520W

Not all refrigerators "must" use 16A wall sockets. The reasons are as follows: • The rated operating current of a refrigerator is far lower than the load capacity of a 10A or 13A socket. • Under normal circumstances, its operating current does not constitute an overload for a regular socket.

A fan speed control wall switch is a specialized switching device used to change the speed of a fan. It is installed on the wall and adjusts the fan's power supply voltage, phase, or frequency to regulate the fan speed, thereby controlling the fan's rotation speed and allowing users to obtain different levels of airflow.