How to install a ballast. See my channel here. Install the new ballast. Then use a nut driver to unscrew the nut holding the ballast in place and install the replacement ballast.
To safely replace the ballast in your fluorescent light turn off the lamp remove it and check the voltage of the feed wires with a voltmeter. If an old t12 lamp magnetic ballast is replaced with a newer t8 lamp and electronic ballast the colors will probably not match. Learn how to replace a fluorescent light ballast.
Strip the electrical wiring back 12 inch and connect the matching colored wires with twist wire connectors. Replace the ballast compartment cover and bulbs. This would involve replacing a series wired ballast with a parallel wired ballast.
As your fluorescent lights age they can begin to flicker or make a humming sound. This is caused by the degradation of the ballast inside the fixture.
How To Install A T8 Electronic Fluorescent Ballast In An Old Magnetic T12 Ballast Fixture Youtube
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