First of all, remove the jacket of the power cord to expose the copper wire inside, and then open the wireless socket and plug with a screwdriver, unscrew the buckle and the orange terminal for wiring.
First screw on the power cord, the red is connected to the L pole, the blue is connected to the N pole, and the yellow and green are connected to the E pole. Where L represents the fire line, N represents the neutral line, L is the positive electrode, and N is the negative electrode. Usually 3 wires are connected to 220V, red is the live line, yellow is the neutral line, green and yellow is the ground line.