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    jripani's Avatar
    jripani Posts: 1, Reputation: 1
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    #1

    Oct 17, 2009, 02:11 PM
    Fluorescent ballasts
    How can you tell a ballast is going bad in a 4 foot fluorescent light?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Oct 18, 2009, 03:26 AM
    If the lamps are still working, and one end of the lamp(s) is blackened, the ballast is defective. You can check the manufacturers website, and look for troubleshooting tips.
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