1. First, use a test pen to locate the live wire;
2. Turn off the socket power;
3. Connect the live wire to one of the two holes marked "A" on the switch, then connect a 2.5mm² insulated wire from the other hole to the "L" hole of the three holes in the socket below, and secure it firmly;
4. Locate the neutral wire and connect it directly to the "N" hole of the three holes in the socket, and secure it firmly;
5. Locate the ground wire and connect it directly to the "E" hole of the three holes in the socket, and secure it firmly.
Note: The neutral and ground wires must not be connected incorrectly (generally, when facing the socket, neutral is on the left, live is on the right, and ground is on the top), otherwise the circuit breaker will trip when electrical appliances are plugged in and turned on.
