Some manufacturers bring the yellow wires out the same end, some bring them out the opposite end. That ballast is rated to handle two 40W T12 tubes. If you live in a country with 240V municipal power, though, that ballast won’t work for you; it’s built to be connected only to the 120V common in the USA.

What do I do with the yellow wires on a ballast?

The common yellow wires connect from the ballast to push-in connectors on one of the right holders of lamp 1 or 2. Two yellow wires connect the common lampholders together.

Are ballasts interchangeable?





Matching ANSI codes guarantees that the ballast you chose can be used with your lamp. However, ballasts are often compatible with more than one lamp, and vice versa.

How do you replace ballast with different wires?


Quote from Youtube video: So what you're going to do is use wire wire or dots to connect the black and the black the white and the white which you know if you're handy and I've done this before you already knew that anyway.

Which wire is hot on a ballast?

black

Generally, the hot wire on the ballast is black, and the neutral is white. The other colors are the wires that connect the ballast to the fluorescent tube holders and to each other.

How many wires does a ballast have?





Wires on the Replacement Ballast / Transformer



The replacement ballast provides 5 wires: black, white, blue, blue (equivalent) and red. Incoming electrical power at the fixture connects to the line BLACK and WHITE wires shown on the diagram.

How do you replace an old ballast with a new ballast?

It is simpler and faster to do the following:

  1. Shut off power to light fixture at the circuit breaker.
  2. Cut the wires close to the old ballast and remove the ballast.
  3. The wires from the new ballast are trimmed of excess length.
  4. The new ballast and lampholder wire ends are stripped.

How do you match a ballast?

When purchasing a ballast, you’ll need to read the type of lamps it’s designed for, how many lamps it operates, and the voltage the lamps will run on. Choosing the right ballast for a lamp will optimize the light output and life of the bulb.

How do I know if a ballast is compatible?

You can determine whether you have a compatible fixture in seconds. Simply turn the light on, then take a photo of the fixture using your smartphone or digital camera. If there are no dark bands on the resulting image, you have an electronic ballast that will work with direct drop-in LED tubes.

How do I choose a replacement ballast?



Quote from the video:
Quote from Youtube video: The only things that matter when you're replacing a ballast are we're number one the number of bulbs number two the type of bulbs number three the voltage.

What are the black and white wires on a ballast?

What are the black and white wires on a ballast? Black wire is for line voltage and white wire for neutral. An instant start ballast uses a single wire which connects from the ballast to each of the lamp terminals.

How do you wire two ballasts together?

Light Fixtures with Two Ballasts



Individual wires of one ballast connect to the one side of the fixture, individual wires from the other ballast connect to the other side of the fixture. The common wires of each ballast are connected to the other side of the fixture from each of the individual wires.

What is the red wire on a ballast?



2 and 3 lamp instant start ballasts use blue wires for individual connections, and red wires for common connections. Black wire is for line voltage and white wire for neutral.

Can a fluorescent light work without a ballast?

All fluorescent bulbs require a ballast. All compact fluorescent (CFL) bulbs require a ballast, which is often integrated. All HID bulbs require a ballast, which is sometimes integrated. No LED bulbs require a ballast, although some are engineered to work with an existing ballast.

How do I test a ballast with a multimeter?

To measure it, set your digital multimeter to around a thousand ohms resistance setting. Connect the black leads to the white ground wire on your ballast. Afterward, test every other wire with the red lead. When you do this test, a good ballast will return an “open-loop” or max resistance.

How do you wire an electronic ballast?

Quote from the video:
Quote from Youtube video: And you're going to connect this red wire. Over here to both the blue and the red wires going to the bulb connection on the fixture.

Can I replace magnetic ballast with electronic ballast?



Fortunately, compatibility isn’t really an issue, as most electronic ballasts have been designed to replace existing magnetic ballasts. A preferable electronic ballast is the T8 model. This option has several advantages over the T10 and T12, including improved lighting efficiency.

Can you mix magnetic and electronic ballasts?

There is no problem with replacing the magnetic ballasts with electronic ballasts, one at a time, light fixture by fixture, just keep track of the type of lamps that are specified on the label of the new electronic ballasts which will most likely be the T8 type lamps.

Are digital ballast better than magnetic?

Magnetic ballasts are cheaper to buy, but cost way more to run and are slightly quicker to degrade. For optimum efficiency, you should replace your magnetic ballast every 2-3 years. Digital ballasts last much longer, and have a consistent output over their life.