how to wire light and switch from outlet

The process of wiring a light and switch from an existing electrical outlet is not overly difficult, but it requires a basic grasp of electrical wiring precautions. It is strongly recommended that anyone engaging in DIY electrical projects should understand the principles involved with wiring before attempting a complex installation. That being said, with a general understanding of electrical wiring and the right tools, this process can be completed safely and effectively.

To begin, make sure electricity to the area is turned off. Have ready a length of NM-B cable, a standard 15 amp or 20 amp single-pole switch and a light fixture, along with the necessary installation hardware. With the power shut off, remove the light switch cover plate. Unscrew and pull out from the box both the existing switch and the outlet. Both have a colored wire corresponding to the primary wire coming in from the breaker box, which is usually black.

Remove any excess black insulation from each wire, then use wire strippers to cut away all but about an inch of wire insulation. Take the two loose ends of the NM-B cable and feed them into the box. Connect one end of the cable to the existing wire attached to the outlet, and the other end to the switch. Use screwdrivers to attach the switch to the box. Finally, take the exposed copper wire from the light fixture, connect it to the switch, and insulate it with electrical tape. Reattach the cover plate over the switch and you are done. Congratulations – you have just wired a light and switch from an existing outlet!

How To Wire Light Switches From An Outlet