How To Wire Light Switch: A Beginner's Guide

If you’re looking to learn how to wire light switch, this guide will provide you with a step-by-step process to make the task simple and easy.

What You’ll Need

Before you start, you’ll need a few things:

  • A screwdriver
  • A voltage tester
  • A wire stripper
  • New light switch
  • Electrical tape

Step 1: Turn Off the Power

Before you start wiring your light switch, turn off the power by switching off the circuit breaker. Use your voltage tester to ensure that there’s no electricity running to the wires.

Step 2: Remove the Old Light Switch

Remove the old light switch from the wall by unscrewing the screws. You’ll see two wires attached to the switch.

Step 3: Identify the Wires

Identify the wires that are attached to the old light switch. You’ll see a black wire, a white wire, and a green or copper wire.

Step 4: Disconnect the Wires

Use your screwdriver to loosen the screws holding the wires in place. Once they’re loose, pull the wires out of the old switch.

Step 5: Connect the New Light Switch

Take your new light switch and connect the black wire to the black screw on the switch. Connect the white wire to the silver screw on the switch. Finally, connect the green or copper wire to the green screw on the switch.

Step 6: Attach the Switch to the Wall

Once the wires are connected, attach the switch to the wall using the screws provided.

Step 7: Turn on the Power

Turn the power back on by switching the circuit breaker back on. Test your new light switch by turning it on and off.


Q: Can I wire a light switch without turning off the power?

A: No, it’s important to turn off the power before wiring a light switch to avoid electrocution.

Q: What happens if I wire the light switch incorrectly?

A: If you wire the light switch incorrectly, it may not work or could cause a fire hazard. Always follow the instructions carefully.

Q: Can I wire a dimmer switch in the same way?

A: Yes, you can wire a dimmer switch in the same way as a regular light switch. Just make sure to follow the manufacturer’s instructions.


Wiring a light switch may seem intimidating, but by following these simple steps, you can install a new switch in no time. Always remember to turn off the power, identify the wires, and connect the new switch correctly. With a little bit of patience, you’ll have a working light switch in no time.