My tank is also 2 feet deep (but only 20 inches wide). I bleached corals sitting on the sand with the unit set to 60 percent. My light sits only 2-3 inches from the surface but it is also going through a glass top. I am currently running at 40 percent ( I actually have the IT2040 but it's the same lights)

I should add that the light doesn't appear as bright to my eyes as my old 250MH set up but the reaction of my corals is telling me the usable light they are getting is more than the MH.

Its true that many people indicate that the overall light with LED's doesn't appear as bright but the corals tell us that they are getting a lot more from a lot less with the LED's. I have a DIY fixture over my main display and at 40% during peak times I'm bleaching a lot of my stuff. I don't have my frag tank up yet but the IT2040 I have has the LEDS more tightly packed than my DIY fixture so I imagine I'll be having the same struggle with it being too much unless I cut it back at first.

Ok I borrowed a par reader from a friend. Comparing between T5 and LED. At full blast on both channels, 24" tall tank straight down, 1/4 down from surface where the first coral - 305, on sand 105. My 16" tall breeder with 4 x 39 watt T5 - first coral on top - 176, sand 98. And to my astonishment, my 40 gal breeder tank looks much brighter than my 3 ft x 2ft x 2ft tall tank under this LED. Looks like through naked eye this LED put out more intensity than i can see.

I have 3 units over my tank, all running at about 50% and I have to watch where corals goes because I can bleach them way to easily. I lost a few frags when I first started with these lights because of that.

They have arrived. Delivery notice. Pick up at postal outlet.

:)

Cool keep us updated as to how they look/work out for you.

These look great. Right outta the box they feel solid and look top notch.

Thanks Nick for the fast shipping and great service.


I made the rack this morning so they are already running, at 50%, and BRiGHT!!!

http://i653.photobucket.com/albums/u...121014F24F.jpg

How high above your tank are they?

About 8".


Also. I can barely hear the fans. Six total. Run very quiet and this thing is cool to the touch.