How do you wire a light fixture with 2 black and 2 white wires?

Take your white that is in the same cable as your always hot black and wire nut it with your other white. Now go up to your light box. Take the two blacks and wire nut them together with a pigtail. The pigtail will go to the copper coloured screw on your light.

How do you wire a light fixture with two black wires?





If you need to wire a light fixture with two black wires, your first step is determining which wire is which.



  1. Step One: Turn Off The Power. …
  2. Step Two: Take A Picture. …
  3. Step Three: Attach The Wires. …
  4. Step Four: Test The Connection. …
  5. Step Five: Install The New Fixture.


How do you wire a light fixture with two sets of wires?

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. Repeat these connections with the two white neutral wires from the light fixture and the white neutral wire in the light fixture box.

What do you do with green wire without ground?

What to do When there is Nothing to Attach the Ground Wire

  1. When you have a ground wire and there is no place to attach it then place a wire connector over the end, coil up the ground wire and push it back into the electrical junction box.
  2. IMPORTANT: Never cut the ground wire off.

Can you put two wires one screw?





Never connect more than one wire under a single screw terminal. It’s also not a good idea to direct-wire all three cables to the receptacle by utilizing both the screw terminals and the push-in terminals on the back of the device.

Why are both black and white wires hot?

Here’s a rundown of electrical wires: The black wire is the “hot” wire, it carries the electricity from the breaker panel into the switch or light source. The white wire is the “neutral” wire, it takes any unused electricity and current and sends it back to the breaker panel.

Which wire is positive when both are black?

If the multi-colored wire is black and red, the black wire is the negative wire, while the red one is positive. If both wires are black but one has a white stripe, the striped wire is negative, while the plain black wire is positive.

Can you wire 2 black wires together?

This is the typical way to connect a switch. The 2 blacks connected are “power in, power out” to the next switch in the circuit. The pig-tail to the dimmer connected to the two blacks is also typical.

What do you do with extra wires in a light fixture?



Put a wire nut on the red, and just push it back in the box. Connect the white and black of the new fixture to the corresponding wires in the box. Install a light bulb, turn the power back on, and see if the light goes on and off with the switch.

What if I don’t have a ground wire for light fixture?

A plastic box with no ground



You’re just as well off leaving the wire unconnected as you are trying to ground to plastic. You can wrap the wire around one of the screws that holds the fixture on, but the only purpose it serves is to help hold the fixture up while you wire the black hot and white common wires.

Is it OK to install a light fixture without a ground wire?

Yes, if you have a metal light fixture your fixture needs to be grounded. The ground wire exits your junction box, but it is not attached to your junction box.

What to do if there is no ground wire for light fixture?



If by chance you are installing an electrical light fixture that has no ground wire into an electrical box with no ground wire as well, then simply connect together the hot wire from the electrical box to the hot (black or red) wire on the light fixture.

Can I attach ground wire to mounting screw?

You attach the ground wire from the supply cable to the metal box. Always. If the lamp has a metal frame, and the box is metal, it can ground itself through the mounting screws. Otherwise you’ll need a 3-way pigtail between a pigtail off the box, the supply wire, and the lamp’s ground.

How do you connect a ground wire to a light fixture?

Quote from the video:
Quote from Youtube video: You'll have two ground wires but also you'll have a ground screw connected to your electrical box now a great way to make that three-point connection is to use what's called a pigtail.

How do you hook up a ground wire to a light fixture?

Quote from the video:
Quote from Youtube video: Around the grounding screw on the fixture strap. And tighten it. Down then tuck your wires into the electrical. Box put your light bulbs in if it has sockets turn on the electric to the circuit.

What is the purpose of a ground wire in a light fixture?



The purpose of a ground wire is to give excess electrical charges a safe place to go. The solid mass of earth below our feet has a negative electrical charge, which means positive electrical charges are naturally attracted to it.

Where do you connect the ground wire?

When running a ground wire, it should be connected to the designated place on the device, and then run to a safe location where the energy can be dispersed. This typically means having the wire lead into the earth, which is where this type of wire gets is name.

How do you add a ground wire to a ceiling light?

Quote from the video:
Quote from Youtube video: And the amount of wires in the wire connector. And then connect the ground wire from your light fixture to the ground screw on the mounting. Plate.