DIY CREE LED build - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 05-11-2013, 10:56 AM Thread Starter
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DIY CREE LED build

Hello everyone,

I'm helping a friend with a DIY LED fixture for his reef project.
Since English is not our first language please bare with me with any spelling or grammar mistakes.

a bit of background of his project :

Soft corals and LPS tank

Tank dimensions : 60" x 24" x 24"

light fixture would be 6"-9" above the tank unless advised otherwise

he's getting all the hardware from Rapidled.com

will be getting 3 x Drilled/tapped 6" x 20" Black Anodized Aluminum Heat Sink

http://www.rapidled.....num-heat-sink/

Basically he wants to know the best ratio between whites, blues and reds ( CREE unless advised otherwise )
if I'm not mistaken there are 108 LED spots.

I just want to mention that I'm using CREE XM-L U2 LEDs to light my Tropical Dart frog Vivariums and I'm very very pleased with them.
I know that lighting a reef has different variants to consider when putting together a light fixture. that's why I'm posting here to learn from all the experienced reef hobbyists.

We would appreciate your opinion of what LEDs would be he best bang for the buck and the rest of the hardware to fit the LEDs chosen as far as drivers, dimmer/controllers etc...

I'm using 120mm computer fans as active cooling over my fixtures and I guess that's what we will do for this project, well unless you guys advise otherwise .


Thanks in advance
Omer
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post #2 of 8 (permalink) Old 05-11-2013, 04:22 PM
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You'd probably be better off posing your questions as to the best ratio of blue/ red/& white leds on a REEF forum, but you may find answers to other aspects of the project around here too. Here's a good thread that can get you started-DIY LED FAQ - Where to begin?

225 Gal, Glass "Reef Ready" w/ twin Iwaki Pumps & 2 Ocean Clear inline filters.Lighting- Custom built DIY 600 watt LED system, BlueFish "mini" Led Controller,iAqua Aquarium Controller , and a 20lb CO2 system w/ Milwaukee Ph Controller.
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post #3 of 8 (permalink) Old 06-07-2013, 04:15 AM
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$55 just for a heatsink??? WOW... I bought from China 5.5"x23" about 9 $US works wery well...

Turkish boy from Hong Kong...
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post #4 of 8 (permalink) Old 06-07-2013, 04:19 AM
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If you go on their website they actually have pre made kits you'd still have to assemble with all the lights needed and a mapped out diagram. If not ledgroupbuy.com does

Patience once drove a man insane

Thanks for your time
Danny Tejeda
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post #5 of 8 (permalink) Old 06-07-2013, 04:27 AM
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Everyone says Chinese stuff is really bad. But you can buy even CREE Led's from china and much much cheaper. Just you may know which seller, and which product is really good.

Im living in Hong Kong, so its so easy to buy something from China, but just for a heatsink... Its not really complex material. 55 $US is tooooo much for me... I can build whole LED lighting just for heatsink price in US...

Turkish boy from Hong Kong...
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post #6 of 8 (permalink) Old 06-07-2013, 04:40 AM
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you don't need any red LEDs for a reef aquarium unless you plan on growing macro algaes or mangroves. as far as the ratio goes i would say a 2:1 white:blue ratio looks good. especially if you use dimmable controllers for each color.
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post #7 of 8 (permalink) Old 06-07-2013, 07:01 AM
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Quote:
Originally Posted by PunknDestroy View Post
you don't need any red LEDs for a reef aquarium unless you plan on growing macro algaes or mangroves. as far as the ratio goes i would say a 2:1 white:blue ratio looks good. especially if you use dimmable controllers for each color.
That's too much white. You want either 1:1 white/royal blue or add a little more royal blue.

This forum has a ton of info on LED lighting for saltwater. Has a very good thread on making a full spectrum LED array too.

http://www.nano-reef.com/forum/25-lighting-forum/
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post #8 of 8 (permalink) Old 06-10-2013, 05:57 PM
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www.rapidled.com have some really quality expensive equipments. The impressive ones are the solder-less types. It is sometimes a real hassle to work with solder, especially someone like me whom does not do a good job with soldering irons.

Not all China stuffs are of bad qualities, as long as they've got a tight QC in the end-product. It should last quite awhile.
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