Its essential that you determine which black wire is hot before proceeding. Each light socket in a light fixture has its own black lead wire and white neutral wire.
Found Odd Light Fixture Wiring Question Doityourself Com
Light fixture has two black wires and two white wires. All home electrical wires made in the us. Connect the two black wires from the light fixture to the black wire from the electrical box the same way you connected the white wires. When wiring 110 volt wire to 5 light fixtures in series do i connect the white wire to the fixture or splice to another white wire at each fixture. Depending on the manufacturer of the light fixture the lead wires may be connected with a wire connector to. Bathroom lighting particularly light bars over a bathroom vanity often will have receptacles for two or more light bulbs. Of course the black wire is connected to the fixture and the ground is spliced to another ground wire at the fixture.
Electric light fixture cords have two distinct indicators flat light fixture cords have two indications that are fairly easy to identify which will reveal how each wire is connected. However if you need to rewire a light switch or a plug socket you may occasionally come across two black wires. Follow standard color codes that identify each wires function in a circuit. The easiest and safest way is to use a multimeter to test for current. Black means hot white signifies neutral and green indicates ground. Knowing which wire does what and goes where is imperative not only in the correct configuration of an electrical system but also for your familys safety.
Connect the two white wires from the light fixture to the white wire located in the electrical box by twisting an orange wire nut onto all three wires. How to install bathroom light fixtures with two black two white wires. The side of the cord that has lines on one side identify that side as the neutralthe neutral wire of a 120 volt circuit is typically the white wire.