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  1. #1
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default Building your own underwater Led

    Hi guys,
    For those who want a cheap, nice and efficient underwater led with pride of making it by yourself, here are mine :

    I started with a foot plastic hider sheet, found in my construction shop. It's 60mm diameter, exist in black or silver :



    Here is a link to get it in USA : http://www.componentforce.com/category/479/castor-cups

    From UK : https://www.sinclair-rush.co.uk/product/479/CH2/order

    Another kind of caster cup : https://www.amazon.com/Magic-Sliders.../dp/B000UVMOBW

    Then bought 2 home leds, 12v DC, blue, with 24x SMD 5050 leds :



    You can go with a 30x SMD bulb : http://www.dx.com/p/mr16-470nm-5-5w-...5#.U4ROOlKKCUk

    Or with direct PCB without need of breaking anything : http://www.gearbest.com/car-lights/pp_96118.html?wid=21

    Broke it to keep the PCB :



    Then glue the pcb (with 1 meter wire welded) to the plastic sheet with spacers (it can be a water bottle or soda cap), to escape the stuff behind the PCB, and pour casting epoxy resin in it. You can use this resin : http://www.michaels.com/easy-cast-cl...=epoxy&start=8. 24 hours after, it's crystal clear, solid and perfectly sealed :




    Black Caps : http://www.componentforce.com/category/479/castor-cups

    From UK : https://www.sinclair-rush.co.uk/product/479/CH2/order

    or : https://www.amazon.com/Magic-Sliders.../dp/B000UVMOBW

    Blue Leds : http://www.dx.com/p/mr16-470nm-5-5w-...5#.U4ROOlKKCUk

    or : http://www.gearbest.com/car-lights/pp_96118.html?wid=21

    Epoxy clear casting resin : http://www.michaels.com/easy-cast-cl...=epoxy&start=8
    Last edited by Sdc77; 08-11-2016 at 08:17 AM.
    Stéphane
    -----------------------
    1989 Supra Saltare

  2. #2
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default

    Back of the thing :



    Then I connect it to the boat with SS screws :





    It's bright and powerful :

    Stéphane
    -----------------------
    1989 Supra Saltare

  3. #3
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default



    In water :





    Stéphane
    -----------------------
    1989 Supra Saltare

  4. #4
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default



    It's 2 meters behind the boat lighting for ........ $8 each ...

    Enjoy

    Stéphane
    -----------------------
    1989 Supra Saltare

  5. #5
    Join Date
    Aug 2009
    Location
    London, Ontario, Canada
    Posts
    1,187

    Default

    Awesome diy job, very cool
    2009 21v Worlds 340 Cat
    run your engine after you change the oil
    Doug

  6. #6
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default

    Thank you Doug
    Stéphane
    -----------------------
    1989 Supra Saltare

  7. #7
    Join Date
    May 2013
    Posts
    445

    Default

    holy crap!! that is crazy bright! im going to steal this for my boats. its way cleaner than my diy underwater led lights.

    i think this needs to become a sticky
    Last edited by villain; 06-05-2013 at 09:51 PM.

  8. #8
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default

    Thanks villain !
    Do you have a link to your diy led ?
    Stéphane
    -----------------------
    1989 Supra Saltare

  9. #9
    Join Date
    Jun 2013
    Location
    Syracuse NY
    Posts
    934

    Default

    Where can you get the black plastic thing to put the light in

  10. #10
    Join Date
    Nov 2011
    Location
    Paris, France
    Posts
    536

    Default

    Try at your local DIY store/shop. Where you can find table feet stuff, you should find it.
    Here in France, my local DIY store's name is "Leroy Merlin".

    In USA, you can get it here :

    http://www.componentforce.com/category/479/castor-cups

    From UK : https://www.sinclair-rush.co.uk/product/479/CH2/order
    Last edited by Sdc77; 08-11-2016 at 08:18 AM.
    Stéphane
    -----------------------
    1989 Supra Saltare

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