Once you know how to wire a light switch, ... These two varieties of electrical switches are called power-through switches and end-line switches, and the diagrams below explain how each type works.

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 ...

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 ...

My house was built in the 50s, with wiring from that time period. I'm trying to understand how to connect a modern switch up in the place of an existing old one and it just isn't making sense to me.

Lutron is also launching an accessory switch later this year for new installs, which will work like a mechanical switch but come with special wiring. It also won’t count as a device on the ...