LEDs 60 meters up with salt water spray IDEAS?

Discussion in 'General Electronics Chat' started by revealed, Apr 19, 2012.

  1. revealed

    Thread Starter New Member

    Apr 19, 2012
    1
    0
    Hello there kinda new here

    A customer has asked me to think of a way to get some led light at he top of a tower at the sea front and I'm a little stuck just wanted some fresh eyes and minds in on it

    The spec that I have been given is....
    1 have to be viewable from all angles and from the ground
    2 have to be able to put up with salt water spray with very little or no work
    3 are 60 meters up in the air


    Any ideas, photos or plans are more than welcome

    Just to give you an idea the units are to go on top of the white towers seen in link

    http://www.transportxtra.com/files/10502-l.jpg


    Thanks
     
  2. Veracohr

    Well-Known Member

    Jan 3, 2011
    550
    75
    Something like a spherical LED array covered in a water-tight transparent casing?
     
  3. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    Put the LEDs and resistors, caps etc in a clear glass jar then fill it with water-clear epoxy with just the wire coming out.

    Then turn the jar upside down and mount to the pole. You could also insert a metal (stainless steel?) tag intot he jar before you epoxy, so when finished the tag has mounting holes for stainless bolt(s) so you can mount in secure from storm winds etc.
     
  4. panic mode

    Senior Member

    Oct 10, 2011
    1,319
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    so you are building LED version of lighthouse beacon? if so I agree with the previous post. you can use coil of light rope (string leds in a PVC tube). wrap it around something that is smaller diameter than your jar, seal the ends of the tube with only wires coming out, then put the lid on jar and grease it or seal it with silicone... this will make it serviceable (if needed just remove silicone). btw, those poles look like 25m, not 60m (maybe 60ft)
     
  5. panic mode

    Senior Member

    Oct 10, 2011
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  6. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    Our lighthouse uses a VLB-44 LED array by Vega Marine. The Coast Guard changed it out late last year and it is much brighter for longer distances for less power.

    It does illuminate the structure so it is apparent when it is on but it only shines in a small horizontal angle.
     
  7. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,647
    759

    In the specs, when they sait "@ 0.74T" what does T means?
     
    Last edited: Apr 21, 2012
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