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  1. 12-06-2007, 12:47 AM #1
    Ellie
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    Default Ballasts

    I have been using a 250W grow light. I had a good crop from my grow but feel that it could have been improved with more light. I would like to change to a 400W - would I need to buy a different ballast or can I just change the bulb?
    Hopeful Grower
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  2. 12-06-2007, 12:58 AM #2
    bKonz
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    You will need to buy a 400W ballast.
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