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Andy`s 120 LED project!!!!

Discussion in 'General Discussion' started by Andy The Reef Guy, May 27, 2011.

  1. May 27, 2011 #1
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Okay so I've really been doing my homework on LED's and figuring out binning and all the technical elements as well as just looking at general logistics of an LED set up. I may end up waiting till MACNA to see if I can get any good deals but here's what I'm sketching up for my LED conversion.
    Again, I'm rocking a 120 with lots of SPS and some zoas and LPS, I'm trying to replace 600 watts of light between 2 MH's and t5's.
    I'm going to go with 96 LED's a set of 24 mounted on a 4.25x16" heat sink in three rows of eight. Two heat sinks spaced evenly over each half of the tank. Each half will have this combination of LED's (48 all together on each side)
    to be continued....(I'm on lunch). I will continue from my work station between times.
     
  2. May 27, 2011 #2
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Okay, so here's the arrangement for one side and then duplicated on the other side.
    RB - CW - RB - RB - RB - RB - CW - RB
    CW - RB - NW - B - B - NW - RB - CW
    RB - NW - B - CW - CW - B - NW - RB
    CW - RB - B - CW - CW - B - RB - CW
    RB - NW - RB - B - B - RB - NW - RB
    RB - RB - CW - RB - RB - CW - RB - RB
    I'll be using all 40 degree optics on everything except the center cluster of CW's and regular blues and all NW's which I will use 60 degree optics on.
    all LED's will be highest effeciency possible Q5's on the whites and the best flux rating for RB and B bulbs.
     
  3. May 27, 2011 #3
    ThyRaven

    ThyRaven Well-Known ReefKeeper

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    What optics are you going to use? Also notice that they arent the same, any reason behind that?
     
  4. May 27, 2011 #4
    JB Marion

    JB Veteran Reefkeeper

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    How are you planning to run your drivers. On your top layout you have 14 B/RB (which will push a driver to it's absolute limit), on the bottom on you have 16 which is too much. Your either going to have a lot of drivers or your're going to have to run some of them in parallel strings which will lower the output a bit.
     
  5. May 27, 2011 #5
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    The B and RB's req more amperage than the whites? Can't you run 24 XP-E's on a Mean Well ELN 60-48D?
    From what I understand you can only run 12 XP-G's on a Mean Well ELN 60-48D?
     
  6. May 27, 2011 #6
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    The high low color temp LED's I want shallow penetrance on, to mimmic the quickly diminishing properties of red/orange/yellow wave legnths. The blue's I am hoping to gain some blending with and they aren't nessesarily for PAR.
     
  7. May 27, 2011 #7
    JB Marion

    JB Veteran Reefkeeper

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    Andy,

    You can run up to 12 XP-G's in series or 13 (maybe 14 if you push it) XP-E's in series. All of the CREE LED's have roughly the same voltage (3.x V), the real difference is how efficient they are at a given current and what their max current is.

    For example, the max current of the XP-E's is 1 Amp. For XP-G's it's 1.5A and for XM-L's it's 3A.

    You can run 24 LED's on a 60-48D, but you have to run 2 series of 12 in parallel. With the XPE's this works pretty good with the meanwell drivers. For example, you can tune the driver to output 1.6 Amp. This would be way too much current for a single series of 12 XP-E, but if you put 2 series of 12 in parallel with each other, you get roughly half of the current through each series (or .8A each). This is well within the limits of the XP-E. It doesn't work as well for the XP-G's because they are capable of handling a lot more current than what they would get if you ran 2 series of XP-G in parallel.

    -JB
     
  8. May 27, 2011 #8
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Yes okay! That's what I wanted to hear. Question, of course there is a certain amount of resistance associated with the legnth and diameter of a copper wire itself, do you think an even legnth of wire leading to and between the series of 12 will make a significant difference in the splitting of the curfrent btween the 2 12 led series? . I can't wait for this project!
     
  9. May 27, 2011 #9
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Yes okay! That's what I wanted to hear. Question, of course there is a certain amount of resistance associated with the legnth and diameter of a copper wire itself, do you think an even legnth of wire leading to and between the series of 12 will make a significant difference in the splitting of the curfrent btween the 2 12 led series? . I can't wait for this project!
     
  10. May 27, 2011 #10
    JB Marion

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    No, you would need a significant amount of wire for it to make a difference.    Just use a good 20G stranded wire and you'll be fine.
     
  11. May 28, 2011 #11
    erayk1 Coralville, IA

    erayk1 Well-Known ReefKeeper Board of Directors Leadership Team GIRS Member

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    I knew you would be jealous... /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif
     
  12. May 28, 2011 #12
    Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Yea, I've been pretty skeptical but once I saw urs elliot I started looking around and seeing so many other examples.
     
  13. Apr 26, 2013 #13
    areefoffaith

    areefoffaith Inactive User

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    any pictures?
     

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