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

Take your always hot black and put it on your light switch, than take the other black in that box and put it on the light switch. 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.

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





Black wires always signify the positive, or hot, leg of the current, while white wires signify negative, also called neutral or return. Ground wires are either left bare or covered with green insulation. When there is an extra hot wire, it is red. Ceiling fixtures almost always have a black and white wire.

What are the 3 wires in a light fixture?

A standard box for a light fixture will have three wires, a white (neutral), black (current), and copper (ground.)

What do you do with the red wire in a light fixture?

Red wires are usually used as secondary hot wires. Red wires are also hot and should be clearly marked to avoid the dangers of electrocution. Red wires are commonly used when installing ceiling fans, where the light switch maybe.

Why do I have 4 wires on my light switch?

Since the switch cuts the power on and off, there will be a black wire coming into the switch and a black wire leaving. The whites are normally just connected together with a wire nut and the coppers are connected together with a wire nut or grounded to a metal junction box. So the new switch has four wires.

Why are there 4 wires in my ceiling light?





In order for the light to be controlled by its own switch, the wiring between the switch and the fan unit needs a fourth wire, a red wire, to carry power to the light kit.

How do you wire a 3 wire light?

Quote from the video:
Quote from Youtube video: And connect this into the left traveler terminal of switch. Two then we run the red traveler wire from the right traveler terminal of switch 1 and connect this to the wire connector in the ceiling.

How do you wire a 3 way light fixture?

Quote from the video:
Quote from Youtube video: Together and then hook to your light neutral screw or wire whatever your light has the hot wire coming from this last switch again pigtailed all the blocks together and over to the light.

Do I connect the red wire to the black wire?

Red Electrical Wires



These wires are typically used for switch wiring as well as the interconnection between smoke detectors hard-wired into the power system. You can link two red wires together, or you can link a red wire to a black wire. Since red wires conduct current, they are considered hot.

Which color wires go together?



The protective ground is green or green with yellow stripe. The neutral is white, the hot (live or active) single phase wires are black , and red in the case of a second active.



US AC power circuit wiring color codes.

Function Line, 3-phase
label L3
Color, common blue
Color, alternative yellow

Does the red wire go with black or white?

Attach the black wire to the outlet you want to always be on (usually the top one) and the red wire to the switched outlet. Connect the white wire to either of the chrome screws (remember, they are still joined) and the ground wire to the green ground screw.

What color wires go together for a ceiling light?

If you are re-installing an older fixture, the fixture wires may not be color coded. If so, choose one fixture wire and connect it to the black supply wire. Connect the other fixture wire to the white ceiling wire. Connect the silver or copper ground wires.

Does the red wire connect to the white wire?



In the US, the answer would be no, even though I am reluctant to answer this. White is not aggressive. White is neutral, black is 120, green is ground, and red is the other phase of the mains into your house.

What does the red wire connect to?

Red wires are mostly used to connect the home’s power system, and hardwired smoke detectors such that if one alarm goes off, all of them go off. Red wires are used in the installation of ceiling fans, where the light switches may be. Electricians can link a red and black wire or two red wires.

What does the red wire mean when installing a ceiling fan?

A red wire up in the ceiling fan junction box usually indicates that the wiring has been installed which provides separate switch for the light and a separate switch for the fan motor. If your ceiling fan does not have a light fixture, then simply cap off the red wire and attach the fan motor to the black wire.

How do you wire a ceiling fan with a red black and white wire?

Quote from the video:
Quote from Youtube video: So black wire is usually the live wire. So let's connect the black wire. Together. You can use one of these guys here then let's connect the white wire. Together.

Why are there 2 black and 2 white wires in ceiling box?



So, why are there two black and two white wires in your outlet box? There are two black and two white wires in an outlet box because the outlet is in the middle of a series circuit, accepting power from another source and sending it on. Two cables are hot wires, bringing the power in and carrying it onward to the next.

Where does the red wire go on a light switch?

Attach the white wire from the light fixture, which is now the hot wire, to the nut at the top right of the switch. Attach the red wire from the light fixture to the nut at the top left of the switch. Connect the bare copper wire to the green nut at the bottom left of the switch.

Where does red wire go on 3 way switch?

The black hot wire connects to the far right switch’s common terminal. Red and blue wires link traveler terminals of both switches. The red wire, which is connected to the first switch’s common terminal, leads back to the fixture.

Where does the red and black wire go on a light switch?

Basic Knowledge of How to Wire a Light Switch

  1. Black Wire – This is the hot or load wire.
  2. White Wire – This is the neutral wire.
  3. Bare Copper (Green) Wire – This is your ground wire.
  4. Red Wire – This wire is used for 3 or 4 way switches and will connect the switches together so they can each control your lights.