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#4
10-29-2009, 02:43 PM
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Most bulbs I have found are rated at two different bulb life, under 15 watts seam to be 6000h or 250 days 24/7, the over 15 watters seam to be about 8000 hours so 333 days. I had a 23 watt bulb and I did a once a year bulb replacment, and I replaced it in the spring, so it was most effective during the higher temp weather when algae blooms would be more frequent.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive. 
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