cree, bridgelux, phillips are probably your top 3 brand names. anyone of thoes will give good results. as for the lumen/watt wait an hour and one of these three will bring out a new LED that is the best...... Cree is the name because they were the first to bring out a powerfull LED at a reasonable price plus they have realy been pushing the new developments, which is why you see about 4 different versions of cree LED being used in DIY builds over the last two years.
bang for buck I would have to say I am leaning towards bridgelux myself for my build now. at 1/2 the price people want for the new cree's its a no brainer. just for info I am looking at using one nutral white one royal blue and one true violate per cluster. I am not sold on the green and reds, and have seen tanks looking just as good with out them. now if your using 10K for you white I can see where the red and green might help.
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*
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