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Old 11-13-2010, 01:08 AM   #1
jt41time
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How many leds?.....


Im trying to get a good light setup for my 55g. I have been looking a DIY led for a while now. What im wondering is, How many leds would i need for a standard 55g. Equal to 4 bulb t5ho. And what wattage?
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Old 11-13-2010, 08:32 AM   #2
deanp88
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I'm interested in what the LED guys say here myself. I have been looking into it as well.
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Old 11-13-2010, 11:47 AM   #3
jt41time
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If im starting a t5 build from scratch, then im spending like 300 plus for retro kit and bulbs.... I'd rather spend 210 on a 24 led kit.

http://www.rapidled.com/servlet/the-...ourself/Detail

Or start off with a 12 led kit and do another 12 later on...
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Old 11-13-2010, 12:01 PM   #4
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Going DIY will allow you to place the LEDs in strategic locations, making a standard recommendation hard. With those pre-made modules I think a standard will come around, but for DIY we just have to guesstimate.

I have 96 on my 180. Could have done 12 more, but I don't see the necessity after the fact. For your 55 I would say 48 LEDs because of the footprint. If I had a standard size 55 gal and was putting LEDs on, 48 would be a great lighting system.

BTW rapidleds is a reliable biz. I used them and had a good experience.

Last edited by kwdelre; 11-13-2010 at 12:06 PM..
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Old 11-13-2010, 12:01 PM   #5
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Quote:
Originally Posted by jt41time View Post
Im trying to get a good light setup for my 55g. I have been looking a DIY led for a while now. What im wondering is, How many leds would i need for a standard 55g. Equal to 4 bulb t5ho. And what wattage?
Just need the 3w
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Old 11-13-2010, 01:30 PM   #6
jt41time
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How bad would 24 be? I would love to do 48 but buget is tight. I could justify 200..... But 400?
What if......, Start out with 12 blues and use my 96w pc unit with them at first. Then add 12 white. Then add more later.
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Old 11-13-2010, 06:20 PM   #7
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The problem here is when you start spreading those 12 white over an 18" by 48" area your light will not look uniform. Even with 45 degree optics, I would imagine it wouldn't look right.

The big question here is what do you keep?

Maybe I'm just numb from this hobby and all my others, but $200 is not much in this hobby. You know what I mean? Not trying to break your budget or anything but you will wish you had gone with more than 24 if that's what you land on.

How about a compromise with 36?
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Old 06-05-2013, 09:31 PM   #8
wrasse326
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Im wondering the same thing. I just got a free 55 gallon seaclear tank and i wanna set this one up as a reef tank but i want to use an led fixture.

This fixture i found is 48" and has 54 1 watt Leds. Is this enough for a reef tank? Its listed as a reef fixture.
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Old 06-07-2013, 01:13 PM   #9
ellvas13
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I have a shallow 48" long tank. I did DIY LEDs and I couldn't be more happier with them!!! I have 19pcs 10000K white ones and 9 blue ones giving total of 27LEDs over my tank. Total cost..... LEDs + drivers + aluminium as heatsinks =$76 !!!!! I do have huge bubble tip, hammer, duncans, elegance etc under it and growth rate since I swaped from T5s has gone thru the roof (300 - 400%) which means that my LEDs are doing the job nicely.
This is my build if you want to see it. It's not preaty but it works

http://www.thereeftank.com/forums/f6...ed-204345.html
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Old 07-02-2013, 11:04 AM   #10
Maer Bear
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Ellvas,

Could you share your sources for the DIY LED materials? Looking at rapidleds as an example, you can't even touch that total. I'm pretty handy building and wiring things (built a battlebot robot in the past), so options that are not plug and play are fine.

Thanks,

Maer Bear

Quote:
Originally Posted by ellvas13 View Post
I have a shallow 48" long tank. I did DIY LEDs and I couldn't be more happier with them!!! I have 19pcs 10000K white ones and 9 blue ones giving total of 27LEDs over my tank. Total cost..... LEDs + drivers + aluminium as heatsinks =$76 !!!!! I do have huge bubble tip, hammer, duncans, elegance etc under it and growth rate since I swaped from T5s has gone thru the roof (300 - 400%) which means that my LEDs are doing the job nicely.
This is my build if you want to see it. It's not preaty but it works
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Old 07-02-2013, 02:33 PM   #11
Gugs Jr
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I have a 75 gallon which is the same length and height of a 55 gallon

I have 48 lights over it and they are operating at a max of 60ish% power. Been a while since I set it up so can't remember the exact number
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Old 07-02-2013, 05:17 PM   #12
ellvas13
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I got everything from ebay. I did gave away direct links to each piece that I have used in one of my posts.
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Old 07-03-2013, 04:52 PM   #13
Maer Bear
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Thanks, I looked through your old posts and found the info. There are a ton of LED choices on ebay, so it's good to have a reference of one that's acceptable. Are those considered a mid-grade quality LED? Are they equivalent to a Cree (one that I have heard of)? Is it worthwhile to get "name brand" LEDs?
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Old 07-03-2013, 05:31 PM   #14
ellvas13
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Pass, pass and pass... they are nowhere near CREE LEDs are those are the best on the market right now. Are mine considered mid range?... doubt it when i look at the price of $7 for 10Pcs... All I know is that I have used them on my setup and they work perfectly!!! from the detailed spec sheet that I was able to get from seller I have notice little difference between those LEDs and CREE ones so I deceided to try them. I can only share my personal experience here as I'm nowhere near being "LED guru". My tank is doing great with those LEDs on and I do keep softies, LPS, SPS, anemones etc. All I can say is that my LPS love those LEDs and I did notcied better growth comparing to T5HO I had before.

Please don't think that those LED are the best out there cos they are not !!! There's tons of different brands that are 100 times better. This is just a cheap solution for our LED problems as complete unit of 40 LEDs will cost You just over $100 instead of $400+ and since they work what's the point of spending few times more than we should.
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Old 07-03-2013, 10:35 PM   #15
BlakeS
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Has anyone had any experience with 100 watt leds? Just wandering what my next move should be.
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