How do I install a light switch?

1:102:32How to Add a Wall Switch to a Ceiling Fixture | The Home Depot - YouTubeYouTubeStart of suggested clipEnd of suggested clipBack at the electrical box connect the copper ground black and white wires to the new switchMoreBack at the electrical box connect the copper ground black and white wires to the new switch terminals. Then finish up by attaching the new switch and covering it with a coordinating wall plate.

Will light work if wired backwards?

Tip. The fixture still works if you reverse the wires, but the socket sleeve will be hot, and anyone who touches it while changing a bulb can get a shock. When wired correctly, the socket sleeve is neutral and only the small metal tab at the base of the socket is hot.

Can you jump power from one switch to another?

You can wire two light switches with one power supply. Its common to power two or more light switches from a single power supply, and the switches can be in the same electrical box or different parts of the house. The power source is typically the buildings main electrical panel.