All fluorescent light fixtures consist of at least lamp s lamp holders ballast and internal wiring.
T8 fluorescent light fixture ballast.
How to replace the ballast of your fluorescent light fixture replace a t8 fluorescent light fixture ballast.
Some older types have starters too.
A fluorescent fixture requires a ballast to send the proper amount of electricity to the fluorescent bulbs.
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If you re having problems with a fluorescent light turning on and you have tried the simple solutions the problem could originate with a bad ballast.
It is important to follow the wiring diagram on.
The ballast is used to create the voltage and current necessary to start and illuminate the fluorescent lamp.
There will be four to eight wires coming out of the ballast.
Remove the bulbs and open up the fixture as shown in photo 1.
However an electrical ballast can be checked quickly and easily with the right tools.
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The ballast provides enough voltage to start the fluorescent bulbs and once they are.
After all without a working ballast you can t have a working light.
Photos 2 and 3 show how to remove the old ballast from the fluorescent light fixture.