How To Add Lighting To An Existing Wall Switch

If the wall is heavily insulated push conduit through the insulation and then feed wires or cable through the conduit.

How to add lighting to an existing wall switch.

The source for this circuit is at an already existing light fixture and a 3 wire switch loop run from there to the switch box. These diagrams show a typical lighting circuit arrangement with most of the. This 3 wire switch loop satisfies the nec requirement of a neutral in the switch box. You then splice all the white wires and all the ground wires in the switch box together.

You can wire the new wall light fixture into the existing light and have a single switch control both lights. The switch will pass the electricity from the panel to a light. Choose the fixture first. After you ve determined that the existing switch box will work to power the new light it s time to shop for the sconce and pick up the remodeling box cable and electrical connectors you ll need.

Wiring diagram for a new switch and light. The biggest challenge is planning the cable route and running it from the fixture to the new wall switch position. Adding a wall switch to a ceiling fixture can be done in a matter of hours. In this diagram a new switch and light are added to an already existing light switch.

Since the existing light is already connected to the switch and you are not adding a light switch most of the wiring you need will be present in the wall or ceiling. Hook up the outlet as you normally would. Electrical switches typically have 110 volt power connected directly from the circuit panel. Examples include adding lighting underneath kitchen wall cabinets where the existing switch will be at the exact height of the new lighting or installing an outside light by routing the cable directly through the back of an existing switch box to the outside.