Strip the sheathing from the cable and then wire the switch (or switch loop) following these step-by-step directions.
Follow these general guidelines...but always read specific installation directions carefully before you start, as dimmer specs vary.
Learn the code-compliant method for wiring a switch when an outlet or fixture box is closer to the power source than to the switch box—plus see the way it was commonly done in the past.
Be prepared for anything in remodel wiring, but be sure to test, disconnect, and attend to any code violations, before reconnecting the wires to the new switch.
Many receptacles and switches have more than one way to connect wires to them, and it's best to choose the safest method over the most convenient one.
You can wire a three-way switch circuit several ways, but all of them require special cables and switches. Here's the simplest method.
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