How To Install A Dimmer Switch: Step-By-Step Diagram Wiring Guide

1 min read

How To Wire Up A Light Dimmer Switch Top One, Dimmer Switch Wiring

Installing a dimmer switch is a great way to increase energy efficiency in your home, as it allows you to adjust the level of light in a room. It can also provide a more comfortable atmosphere, allowing you to adjust the lighting to the desired level. If you’re looking to upgrade your home with a dimmer switch, you’ll need to understand the basics of dimmer switch wiring. Here’s a step-by-step guide to help you install a dimmer switch.

Step 1: Turn off the Power

Before beginning any electrical wiring project, it’s essential to turn off the power to the circuit you’ll be working on. This will prevent any potential electrical shocks or short circuits.

Step 2: Remove the Old Switch

Once the power is turned off, you can begin to remove the old switch. Start by removing the cover plate and unscrewing the switch from the wall. You may need to use a screwdriver to loosen the screws. Once the switch is removed, you will need to disconnect the wires.

Step 3: Connect the Wires to the Dimmer Switch

Now that the old switch has been removed and the wires have been disconnected, you can begin to connect the wires to the new dimmer switch. The dimmer switch will have two or three wires, depending on the model you have chosen. Connect the wires to the appropriate terminals on the switch, referring to the manufacturer’s instructions for guidance. Once the wires have been connected, you can secure the switch to the wall with the screws.

Step 4: Test the Dimmer Switch

After the dimmer switch has been installed, you will need to turn on the power and test the switch. Make sure that the switch is working correctly and that the lights in the room are dimming and brightening as expected. Once you are satisfied with the performance of the switch, you can replace the cover plate and enjoy your new dimmer switch.


Installing a dimmer switch is a great way to increase the energy efficiency of your home and make the lighting in your home more comfortable. While wiring a dimmer switch can be a bit complicated, the process is relatively straightforward and easy to understand. By following the steps above, you can easily install a dimmer switch in your home.