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How often should bulb be replaced?
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04-01-2016, 07:36 AM
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Alan1
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Join Date: Dec 2008
Location: Sunny Scotland
Posts: 21,512
Mine have been going about 4 years or more and still produce good UVB levels. Other makes have been poor, some of them useless for UVB after just 2-3 weeks but Arcadia has been good.
I have a UVB meter.
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