If youre having trouble locating the ground wire the ground wire is either a bare wire or green. An additional ground wire may be installed to provide a ground wire to the light fixture location.

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Two ground wires on light fixture. Most light fixtures have two electrical wires with colored insulation and a copper ground wire. The ground wire connection should provide a continuous bond throughout the metal components of the light fixture. Heres how to connect a 2 wire light fixture without ground. This keeps you safe from potential electric shock. One wire goes in the top of the switch the other into the bottom. A ground wire should be bonded to the ground system of the electrical panel which must be installed according to code for it to be effective.
An enthusiastic homeowner can save the cost of a professional by knowing which wires connect to. Then to that green ground screw on the fixture bar if thats a metal junction box. To use the wire nut simply insert the tips of both wires and turn the wire nut in a clockwise direction until tight. Your fixture white wire goes to the white wire s in the box. The fixture has a ul label which means it has been tested with the two wires as a requirement. That is what its called when the black wire up at the light fixture is interrupted and a pair of wires called a switch leg goes down to a wall switch.
Your fixture black wire goes to the red wire in the box. If your light fixture has its own green ground wire you will need to connect the two ground wires using a wire nut. Two black wires are what youd expect to see with a switch leg. The purpose of the ground wire. Always turn off the power at the breaker or fuse box before you work on electricity. Step 5 finish mounting your light fixture according to the manufacturers instructions.
Imold jun 15 2013 5. Connect the lead wires from the fixture to the black hot wire in the electrical box by twisting a wire connector to the ends of the lead and hot wires. When you manufacture a piece of electrical equipment even though the parts look to be attached to each other securely electrically they may be insulated by paint or poor assembly. Repeat these connections with the two white. In some cases the ground wire extends through out the light fixture to junction box locations where the light socket wiring is spliced together. When properly installed the bonded ground system is provided to any area of the light fixture where electrical wiring and electrical components are located.
Your two green wires should connect to a bare wire inside the junction box or if no bare wires are present.