Check your new dimmer package for dimensions to make sure it will fit. Open the dimmer switch and strip the rubber coating from the wires.

The tools you’ll need to install a toggle dimmer light switch are inexpensive and will come in handy for all your electrical projects. You’ll need a screwdriver, wire stripper, inexpensive (2 ...

Gently fold the wires back into the box and screw the dimmer to the box. Install the cover plate and turn the power back on to test the switch.