[PSUBS-MAILIST] LED lights

[Rick Patton via Personal_Submersibles]

Hank,
I fabricated an aluminum housing for my prototype using 2 1/2" sched 40
pipe with a heat resistant 1/8" thick lens and a blue globe fitting in the
back and oil filled it. The 10,000 luman array is 1 1/2" square and costs
$3.00 each but puts out an enormus amount of heat and is about 100 watts
each and I apparently have to knock down the voltage from 36 to about 30 to
34 volts or they fry. I want to use three lights facing forward, one on
each side in the middle and one light aft and so that's a lot of watts
sucking off my thruster bank and am having a hard time finding a pwm to dim
them and keep them from seeing 36v.
Rick

On Thu, Feb 1, 2018 at 11:33 AM, hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Rick,
> You can keep it real simple and just buy water proof lights (LED) and oil
> fill them.  Just inspect the light to make sure you can drill and put a
> filler plug in.  I have great luck with a 24,000 lumen light bar.   I am
> actually buying a clear acrylic cylinder to put my light into.  Alec has
> had luck with this also, maybe he can suggest the particular light to use.
> Hank
>
> On Thursday, February 1, 2018, 2:06:41 PM MST, Rick Patton via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> I have been experimenting with my LED exterior lights which is a field I
> know nothing about which makes it even that much more frustrating and
> wanted to get feedback from those who have had success so far using them.
>
> I was planning on using incandescent lights but everyone I talk to say
> that LED is the only way to go. I guess my reasoning for staying with
> incandescent was that it was a no brainier for me but I liked what I heard
> about LED. I initially figured that if 10 lumans is good 10,000 is much
> better but I am finding out that once you get up to that high a luman, a
> lot of things kick in that you have to deal with!
>
> I also am thinking that I can probably get away with a heck of a lot less
> lumans due to the visibility that we have here in Hawaii so maybe all I
> need are 5,000 luman lights which put out a lot less heat and don't have to
> deal with some of the issues that a 10,000 luman light would.
>
> All input appreciated!
> In the dark in Hawaii! not to mention fake missile alerts!!
>
> Rick
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