Cool How To Connect A Three Wire Light Fixture Ideas. If you’re changing out a light fixture and find two wires on the fixture and three wires in the box, you’re not out of luck. Here’s how to connect a 2 wire light fixture to a 3 wire ceiling box.
Web a standard box for a light fixture has three wires: Connect the ground wire from the 3 wire light fixture to the ground wire from the 4 wire light fixture If there is a bare copper wire in your junction box, it should be connected to the green wired terminal.
