1. Open the package of the voltage regulator and open the cover of the rear cable.

2. Strip the wire, unscrew the end with the input end written on it with a screwdriver, divide the live wire into zero, and tighten it.

3. Connect or insert the other end of the connecting cable into the socket or air switch. (The input power supply is properly connected, and you need to check whether it is tight. Otherwise it will cause sparks, electrical aging, etc.) .

4. Connect one end of the driven load (such as a computer, air conditioner, etc.). Output port to voltage regulator. Refer to Step 3 to check whether the cables are securely connected.

5. After completing the above steps, open the circuit breaker ON the regulator and push it to the ON position to complete the power-on. Voltage regulator built-in circuit board control needs to wait 3S-5S to stabilize the voltage. Observe whether the meter on the regulator indicates 220V and, if possible, measure the input and output with a multimeter.

6. Tighten the open rear cable cover to complete the installation.