The Planted Tank Forum - View Single Post - 165 Impulse Build (56k) --- New FTS post #208
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Old 08-30-2011, 01:06 PM   #21
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I don't see why you need 48 XML's unless your doing a high-light setup...I have 12 XP-G's running at 700mA on my 55 and they are just as bright as 4X24W setup and they're 8" above the tank with no optics. They are over a 22" heat sink, and cover 3/4 of the tank with plenty of light.
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