Re: Re: [PSUBS-MAILIST] Interior low level lighting

[<drewacard@charter.net>]

I have potted led in 2 part acrylic for a friends salt water wave tank. 
by the way led's are a current driven device you can run them off line voltage with the correct resistor.
Andy


From: "Brian Cox" <ojaivalleybeefarm@dslextreme.com>
Date: 2005/10/20 Thu AM 08:56:38 CDT
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST]  Interior low level lighting

Bill,
           I have a friend who is making exterior LED's for underwater
illumination using mineral oil to fill the voids and also as a coolent
to cool the LED's that produce too much heat ( when the LED's are pushed
with too much voltage they heat up).

Brian
  ----- Original Message ----- 
  From: Akins
  To: personal_submersibles@psubs.org
  Sent: Thursday, October 20, 2005 03:00
  Subject: Re: [PSUBS-MAILIST] Interior low level lighting


  I wonder if LED's could be rigged for submergence on the dash of my
wetsub? I like John's idea for insuring seeing his switches in total
darkness.

  In the murky water that would be a definate benifit for me in the
wetsub. Being able to see the led light next to my switches would aid in
making sure

  I used the correct ones when in extremely low viz situations. Of
course in that viz case, it would be time to terminate the dive due to
low viz, but DURING

  the dive before it was terminated for low viz, it could be a real
help.  Any ideas?

  Bill.


    ----- Original Message ----- 
    From: Rick and Marcia
    To: personal_submersibles@psubs.org
    Sent: Wednesday, October 19, 2005 11:59 PM
    Subject: Re: [PSUBS-MAILIST] Interior low level lighting


    Interesting thread.  I think I'll be sure to bring my forehead
mounted trilight: It has red LED's for preserving night vision.  A
little off the cuff but this thread got me thinking.

    Rick Lucertini
    Vancouver

    ----- Original Message ----- 

    Subject: Re: [PSUBS-MAILIST] Interior low level lighting


    > Ray,
    >
    > I am planning on using LED lighting throughout my sub's interior.
You can purchase ones that are very powerful but only draw very little
current. And because LED's are tough as nails there is little or no
chance of them getting damaged or burning out from vibration, getting
wet or such.
    >
    > There are super bright LED's now that produce 16K candle power,
run on only 3.4 V and draw about 200 mA a piece. I've already built a
separate little regulated power supply to run them for my project.
    >
    > Also, I am planning to have all of my switches and gauges LED lit
to insure that I can see them in total darkness.
    >
    > John
    >
    > -----Original Message-----
    > From: Ray Keefer <psubs2001@yahoo.com>
    > Sent: Oct 19, 2005 1:33 PM
    > To: personal_submersibles@psubs.org
    > Subject: Re: [PSUBS-MAILIST]  U505 gets historically correct
paint.
    >
    > Hi Bill,
    >
    > The bit about "phosphorescent coat" got me thinking.
    >
    > Critical knobs and switches in our PSUB'S could
    > benifit from such a coating. I found out during my
    > submersible pilot training it can get unexpectedly
    > dark. Surprising how dark it gets driving into muck
    > stirred off the bottom. Even at only 15 feet down!
    >
    > Regards,
    > Ray
    >
    >
    >
    >
    >
    >
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