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If I recall from many years back.....blacklight flourescent bulbs are or were made in two varieties - those that emitted harmful UV light and those that didn't. I had two 4' ones that were the safe kind, but don't recall how I knew, probably by the bulb number. They were a dark blue/purple in color. I seem to recall the unsafe ones weren't colored, but my memory could be wrong. I doubt if the incandescent bulbs sold as novelties would do any harm, but who knows? <br /> <br />Bob Boudreau
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