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#1
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LEDs have actualy been testing out at higher PAR levels than MH when set up right, with none of the heat issues or buble replacment issues. and finaly, they are not new.. been on systems in DIY sence 2001-2002, been avilable comercialy since 2004. so about as new as T5s. Steve
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#2
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If they've been around for so long (6 years isn't that long BTW) then show me a pictures of a tank that has used LEDs for a good period of time for mostly SPS corals. If such a light fixture can't be used to support SPS corals it's about as useful as PCs and NOs. From what I know LEDs don't have the intensity to penetrate water deep enough, they have the par at the surface but that's it. This is why we need high output lighting and why you'll have a difficult time finding someone with success using LEDs alone. Last edited by sphelps; 02-06-2010 at 03:52 PM. |