Power Compact bulbs do not give you very good colour IME & have to be replaced much sooner than MH for a reef tank. PC fine for Fowlrs but I would not use it for reef tanks, unless going with softies & lower light lps. Even then, because they need to be changed more frequently since they dim out & change colour to more yellow, it would not be as cost effective as you seem to think. Countless reefers started with PC lighting & have had to upgrade to MH to not be light limited in their choice of corals. I know that happened to me, but that was before I discovered Canreef.
Anthony
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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