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Old 05-15-2011, 08:59 PM   #1
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Has anyone done a DIY LED hood?

Hi, I am interested in doing a DIY LED fixture for my 120g reef tank. Any advise/input into size/ wattage color ratio would be greatly appreciated! My husband is an electrician so the wiring aspect we have under control... Just don't have a clue as to how many/ type of diodes to purchase.
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Old 05-16-2011, 10:09 PM   #2
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I made an LED fixture for a high-light planted 20H. I'm using ten 3W Cree XR-E LEDs on the tank and I can grow pretty much anything I want. There's more details on the build in the LED link in my signature.

One of the beauties of LEDs is their penetrating power. LEDs put more PAR deeper into the water than other types of lights. For a reef tank, I'd look at a mix of 10,000K white and blue diodes. You'll have to keep the white LED circuits separate from the blues. I've seen people learn expensive lessons by mixing them and having the fixture runaway and start popping LEDS like a string of firecrackers. Cree seems to be about the best brand, but there are others like Luxeon.
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Old 05-16-2011, 10:27 PM   #3
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Thank you let the shopping begin!
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Old 05-18-2011, 01:03 AM   #4
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I just ordered a cree XR-G 6700K with a 1000mA buckpuck. I am starting with this single led for a small 1.5g experiment tank.
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Old 05-19-2011, 12:04 AM   #5
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Quote:
Originally Posted by ldaniel
I just ordered a cree XR-G 6700K with a 1000mA buckpuck. I am starting with this single led for a small 1.5g experiment tank.
Were did you order from?
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Old 05-19-2011, 06:56 PM   #6
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LED supply . com it was a package, i decided to try this out before i spent the cash for a full hood that will be used on my 25g tall.
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Old 05-19-2011, 08:38 PM   #7
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I'm almost done with a light for my 40B. Dealextreme is a pretty good place to buy leds, but shipping takes 2-3 weeks.
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Old 05-19-2011, 09:06 PM   #8
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i had looked at Dealextreme but the site contained a bit more than i was intrested in and i couldnt find the LED's i was looking for. prices through seemed to be compairable.
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Old 05-19-2011, 09:27 PM   #9
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Their search function is pretty bad, but their bulk discount really helps. Plus it's free ($1.99) shipping. I bought some q2's about a year ago for $2.50, which was a pretty good deal.
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Old 05-19-2011, 11:53 PM   #10
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+1 for DealExtreme. Ordering 10 Cree XR-Es was cheaper than ordering 9 thanks to the bulk discount.
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