so for 500 you can have 2 sets that are better then what if you put them together

oh ya it must get hot dont it
where are the fans to keep it cool

From what I've been reading on ReefCentral, heat hasn't been an issue. I woiuldn't be " replacing" anything, I'd be buying one of these instead of buying a dual bulb 36" t5ho, which would be close to $200 after getting bubls .
Seems like a decent alternative . Like I mentioned earlier, just a little concerned with how to mount / hang it and whether to go all blue or 50/50

the color spectrum depends on what other lights you are running. If your running 10,000-14,000k mh then you wouldnt need the white or 50/50 you would go with all blue. For me i want the pop that blue led's cause. Its not the same as t5 ot mh it make certain corals almost glow. I am wondering if i can mount on or two of these on my t5 fixture. It seems possible but i would hate to buy one just to find out i can't mount it.

I will be mounting mine inside a t5 fixture when they arrive (hopefully this week). The short version of what I will be doing is that it's a tek 4 bulb 36" t5 fixture. I plan on replacing 2 of the 36" t5 bulbs with 2 24" reefbrites. This should give me that nice shimmer and definition that point source lighting gives, and the remaining 2 t5s I will use to tweak the overall colour in the tank to exactly what I want.

I'll try to do up a full review for you guys when they arrive

I would love to see some pictures. But what i am wondering is why not keep all 4t5 bulbs going and attach two reefbrite on the side of the fixture?

What is the spread angle of the LEDs?

Any luck geting your new LED's up yet ?
I'm still so torn whether to order a 24", 36" or just go with a 2 bulb T5 to supplement

So if some one bought 4 of the 48" and put them together how much light is that and would this a cheaper way of running say 2x 400's no heat and less power Ian can ya get a par reading on 4 of them togther

Yeah, I started a new thread here:
http://www.canreef.com/vbulletin/showthread.php?t=67874