The Best How To Install Wall Light Fixture Ideas. Some junction boxes contain wiring from multiple circuits. Most sconces have a central stud that allows you to level the fixture even if the box is not level.

To start, you must turn off electrical power to the fixture at the electrical panel. Before replacing a light fixture, check your electrical circuit panel to locate the circuit breaker control for the room where you’ll be working. Flipping the breaker isn’t enough.