DIY LED for 90cm/36 inch 48 gallon tank -FINISHED! Pics/PAR levels on page 2 - Page 4
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Old 02-23-2011, 12:28 AM   #46
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Yeah 40-50 umol is more than sufficient at substrate. You can always expand it later if need be. Very good diy.
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Old 02-24-2011, 10:38 PM   #47
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wowzers, I measure the PAR ratings on a TEK fixture using 2 bulbs, it was 14 inch off the tank and about 16 to the substrate, so a total of 30 inches off the substrate and it was giving 60umols at the substrate. Really shows how important good reflectors are!
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Old 03-15-2011, 10:55 PM   #48
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ok, I put on a few 60 degree optics onto a few of the LEDS, mainly to spot light a few plants that I think could use a little more light. It's not noticeable with both banks on since there's so much light already but when I turn on the individual banks, you can really see the spot light effect, you can see it against the glass a very bright cone of light.

Man, I love LEDs...
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Old 03-16-2011, 05:14 AM   #49
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Old 03-16-2011, 06:00 PM   #50
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It is a growing club! Clearly the absolute most flexible way to light any aquarium. So much flexibility it makes your head ache as you try to decide what to do with them.
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Old 04-20-2011, 02:20 AM   #51
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I am not much of a DiYer but I am really tempted to build an LED fixture for my 48x24x24 120 Gallon tank. Not sure if its worth the money tho for a tank that big. You did a really good job bro!

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Old 04-20-2011, 05:21 AM   #52
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Well don't think of it like you're spending a lot of money now but more of an investment down the road . That's how I see it. Geissman bulbs aren't cheap even tho they're up there in quality. I used to have a 4x39w extreme nova on my 48g. Bulbs were 20-30$ each so pretty much around 80-120$ a year 450$-600$ for 5 years 900-1200$ for 10. You figure if led's will last you 5-10 years(depending on how long you use em each day) you'll be doing pretty darn good.
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Old 04-25-2011, 08:40 PM   #53
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I build DIY electronics as a hobby too. Glad to see this paired with another favorite hobby of mine

I'm looking at getting dirt cheap white multiple LED flashlight arrays and gang/group them together to get the needed light levels.

TPT is an awesome forum
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Old 04-25-2011, 08:52 PM   #54
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When your led lights die do you have to remove them and rewire them? or is their a little bulb that you can replace the old one with?
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Old 04-25-2011, 10:44 PM   #55
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you have to remove them and rewire them. It's not too hard to do.
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Old 10-23-2011, 06:30 PM   #56
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Since I don't have the luxury of owning all those metal and welding tools; can I just salvage my old plastic fixture to install this type of setup?
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Old 10-23-2011, 06:31 PM   #57
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Quote:
Originally Posted by Aqua-Escaping View Post
Since I don't have the luxury of owning all those metal and welding tools; can I just salvage my old plastic fixture to install this type of setup?
i was thinking of doing just that too. well not a plastic hood but an old coral life hood.

The only problem is see is how to install the heat sink internally and have a fan of some sort blowing air over it.

Rapid LED's has 1.1 inch wide heat sinks which span from 12->72 inches long that might fit your need.
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Old 10-24-2011, 06:26 AM   #58
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i have retrofitted an old coralife t5ho fixture into LEDs. It's doable.
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Old 10-24-2011, 04:33 PM   #59
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Quote:
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i have retrofitted an old coralife t5ho fixture into LEDs. It's doable.


worklog? i would love to see how u did it.
how did u mount the sink inside? or did u use the shell as a sink itself?

Also Iwannagofast... have you ever considered using a breaker pannel shell as a cover b4?
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Old 10-24-2011, 06:01 PM   #60
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Sorry I don't have a work log for that one. It was a lot of cutting and cursing to get the heat sink into the fixture. I used some scrap aluminum for the heatsink.

Here's my thread for a archaea led retrofit
http://www.plantedtank.net/forums/li...chaea-led.html
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