DIY Led Lighting

Discussion in 'Lighting' started by BarryRoux, 8 May 2015.

  1. BarryRoux

    BarryRoux

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    Hi All I need some advice . Im busy building an Led unit for my tank. I have 35 led's various colours my tanks outside dimensions are 750mm L x 450mm W I need to make 5 channels for the 5 channel controller. Are there any rules regarding spacing of the led's as well as I have sliders on at the moment with an rather large centre brace?
    Do I place the Led's spaced evenly over the brace as well or create 2 sections on either side of the brace. If over the brace its 6mm glass will I lose Light intensity?
     
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  3. BarryRoux

    BarryRoux Thread Starter

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    This is the aluminium frame to stick the led's on also what do I use to glue the heat sink to the aluminium?

    Led Frame.JPG
     
  4. hadiosbourne

    hadiosbourne

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    there are no rules as to how to place your LEDs, it really depends on your scaping of rocks and corals, if you are spreading the corals all over the tank, then spread the LEDs, if you are having them on like 2 mountains, then have the LEDs close to each other in 2 spots,
     
  5. BarryRoux

    BarryRoux Thread Starter

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    Just some pics on what has been done

    DSC_6950.jpg

    DSC_6951.jpg

    DSC_6952.jpg

    DSC_6953.jpg

    DSC_6954.jpg

    DSC_6956.jpg

    DSC_6957.jpg

    DSC_6958.jpg
     
  6. TaahirS

    TaahirS MASA Contributor

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    That looks very, very nice!
    What LEDs did you use?
     
  7. Franske

    Franske

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    Looks really nice, is that 2 red or UV led's. I would have gone for more blue but that's personal preference, just check that they don't get too warm on the aluminium bars only.
     
  8. BarryRoux

    BarryRoux Thread Starter

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    Thanks Taahirs The are just noraml 1W surface mount LEDs
     
  9. BarryRoux

    BarryRoux Thread Starter

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    Thanks Franske they are 2 Magenta Led's I havent tested them on the tank yet but it woll be easy to replace some with blue.

    Im Planning to add some fans to the enclosure and used thermal heat paste everywhere
     
  10. teez

    teez

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    Hi Barry,

    If you don't mind me asking what did it cost you and where did you get the necessary parts from ?
     
  11. zippy

    zippy

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    the insulation tape with the tank evaporation is not going stay in place for long, make sure you cover the lenses somehow as well cause the terminals(copper) rust away very quickly over tank.
     
  12. VicZA

    VicZA

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    Hi @BarryRoux do you mind me asking what controller you have there, what does it do, and where did you get it from ?
     
    Last edited by a moderator: 26 Nov 2015
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  13. BarryRoux

    BarryRoux Thread Starter

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    Thanks Zippy Im planning an new tank so Ile have to modify the lights but thanks for the advise I will definately do those changes
     
  14. BarryRoux

    BarryRoux Thread Starter

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    Hi VicZA Ive sent you an pm
     
  15. QuickenZA

    QuickenZA

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    My 2c...you need more heat dissipation. I started mine with the same idea as yours and the LEDs kept burning out.
     
  16. QuickenZA

    QuickenZA

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    uploadfromtaptalk1435817042371.jpg

    This is my final product.

    uploadfromtaptalk1435817042371.jpg
     
  17. BarryRoux

    BarryRoux Thread Starter

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    That looks great where did you get the Aluminium from? Is that a piece of Perspex on the bottom ?

    I have an pc fan running at the moment and it keeps the channels cool to 23deg but its not an permanent solution.
    If i may ask what size is your tank and unit and the height from the water level
     
  18. madmatt

    madmatt

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    Could you Send the info on the control and led pricing.
    Power supply.
    Where you got it all from.
     
  19. BarryRoux

    BarryRoux Thread Starter

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    Hi Madmatt

    I got the whole setup from Improved living in PE the whole setup cost me R1100(dependant on size) including the controler(Programmable Sunrise/Sunset) excluding the aluminium

    It has an 12/24V (10A) Power supply

    You can speak to Johan their website is Improved Living PE

    they are extremely helpful
     
  20. QuickenZA

    QuickenZA

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    Well I am in the fortunate position of having a brother-in-law that works for a steel company that sources the aluminium for me. He cut and bent it to size and shape allowing me to slide a perspex sheet onto two "brackets" to act as a splash shield. This splash shield also reduces corrosion on the solder/contact points. This has been running for about 6 months without any corrosion showing up. The only issue I had last week was that one of the solder points disconnected but that's from the metal expanding and contracting with the winter cold.

    This sheet covers a 600x500 area over my 1300x600x700 tank. It is mounted on an aluminium frame (built from mazey's connect-it system) and hangs about 20cm from the water level. I have two heat sinks and one fan and the temperature stays barely above room temp.

    In your case I'd go an look at the heatsinks that Mantech (Mantech.co.za) sells. If you run them across your current setup with a fan or two you won't have any issues. You can buy the perspex in sheets from Builders Warehouse and you can use heat resistant silicone to stick the LED's down. None of mine have come off yet - it also helps convecting the heat to the metal to keep things cool.

    I run 40x3w LED's and I actually think its too much...my corals seem happier with just 2/3's of them on. I also run more royal blue LEDs than white, but I think switching to a 50/50 split will be better so I might be changing them out soon.

    This entire setup cost about R1500.00 if I remember correctly.

    I've added a better pic - don't know why the rotation doesn't work properly.

    20150702_075454.jpg
     
    Last edited: 2 Jul 2015
  21. BarryRoux

    BarryRoux Thread Starter

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    Thankyou Im definately going to make some changes on the new setup
     
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