Next, refer to the switch-wiring photo you took earlier to connect the existing wires to the new switch. Here’s how a single-pole switch is typically wired: The electrical box usually has two ...

Switches interrupt the hot wire only, so they do not need a neutral to operate. Dimmers and other more sophisticated switches have electronics, and for the most part, they do require a neutral.

If you do have this wire, Donnelly says to attach it to the green screw, which will be on your light switch. Step 5: Replace the switch plate Use a screwdriver to place the switch plate back on ...

Ben Patterson/IDG. To work in junction boxes without neutral wiring, C by GE’s new hubless smart switches and dimmers have been designed to “steal” energy from the wire that goes through the ...