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#1
01-26-2011, 11:46 PM
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Watts is just P = EI, or watts = voltage * current
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My 150 In Wall Build 
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#2
02-18-2011, 06:33 PM
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For guys that have DIY LED setups, do you just run the royal blue array at the lowest voltage for moonlights? Or would that be overkill (i.e. if you had say 24/48 in blue LEDs)?
Or did you install a separate set of blues for moonlights? And if so, how many do you run? My tank is 48" wide, will 5-6 LEDs evenly spaced be sufficient?
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Gary Tank was up for 7yrs and 10months. Thanks Everyone! 2016/2017 180Gallon Build Coming Soon... Last edited by GMGQ; 02-18-2011 at 06:36 PM.
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#3
02-18-2011, 06:48 PM
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Mini Build
Just an update on my mini LED build. I'm going down to point roberts on saturday to pick up a bunch of stuff that I ordered:
- Weller 40W Soldering Station (figure it's time to upgrade from my old 25W Radio Shack soldering iron) - 7"x6" heatsink from HeatsinkUSA.com - Meanwell LPC-35-700W driver from RapidLED.com And I already have the LEDs from Milad (4 x XP-E CW, 4 x XP-G RB). I'm going to pick up some Artic Silver Thermal Adhesive from NCIX (I get a discount there), and I should have enough misc electrical supplies in my toolbox. Oh I want to get some ballast quick disconnects from Home Depot. I should also pick up a sheet of Acrylic from IP&P to make a splash guard.
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Gary Tank was up for 7yrs and 10months. Thanks Everyone! 2016/2017 180Gallon Build Coming Soon...
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#4
02-18-2011, 08:01 PM
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I can't find the thread, but when I was considering doing a DIY, I came across a thread on RC about LED optics.
The poster looked at the PAR range between 40, 60, and 80 degree (I think) optics and found that the 60 degree optics were the most efficient and gave the best PAR. I'll dig around a bit longer and see if I can find it...
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#5
02-18-2011, 08:11 PM
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Alright, I lied. But at least I found what I was looking for!
Looks like 70 degree optics make the most of your LEDs: Source However, reading through this again, they didn't test the 40 degree. My assumption is that this source is trying to show you how to get the most par using the least LEDs. Take it with a grain of salt, I'm no expert 
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#6
02-19-2011, 01:50 AM
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Here is an interesting read on optics in a tank
http://www.nano-reef.com/forums/inde...owtopic=261525
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-=Bryan=-
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