If you’re adding an outlet, you need to use wire the same gauge as the existing wiring. How do you tell if your old wiring is 12-gauge or 14-gauge? Here’s a simple visual. Twelve gauge is ...

If your setup requires cable runs between 50 and 100 feet, 14-gauge wire is a good choice. For longer distances over 100 feet or high-powered systems, 12-gauge wire is ideal, as it reduces ...