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#1
05-08-2013, 03:40 PM
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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.
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Mark...  290g Peninsula Display, 425g total volume. Setup Jan 2013. 
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#2
05-09-2013, 04:49 AM
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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.
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#3
05-09-2013, 05:04 AM
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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.
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