Dear Tim,
I have installed two four foot florescent light fixtures in my kitchen and both have a very irritating buzz or hum that seems to be coming from the ballast. I replaced one ballast, both bulbs and the connectors but still have the same problem. How do I get rid of this?
Lynn L.
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Lynn,
Hum from florescent light fixtures can almost always be traced back to the ballast. Several years ago I switched out all of the regular ballasts in my office light fixtures with electronic ones. These quiet blallasts provide instant on and I have never had a hum issue since they were installed. I suggest you try one and see what you think. The electronic ballasts cost more money, but I feel they are worth it.
Tim Carter
www.askthebuilder.com
W3ATB