[PSUBS-MAILIST] led

[Rick Patton via Personal_Submersibles]

Hi Alan

Couple of questions

How many lumens are your lights
What is the source of the light? COB?
How does marine anodizing differ from just regular anodizing and why do you
think that is necessary?
Is the Buck Buster/LED driver only needed to be able to dim?
Why did you want to avoid oil?
Rick

On Tue, Dec 29, 2020 at 10:59 AM Alan James via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Rick,
> I spent a lot of time on my light project, initially looking for & buying
> lights & housings on line, that I could adapt.
> I ended up buying 70W leds & making my own housings. The housings I had
> marine anodized. I had to get an led driver designed & built in China, as I
> wanted dimming. The driver is a constant current step up, step down (buck
> boost) that takes a 12-60V input.
> I had the lenses made up in China; 20 for about $2- each. The units were
> tested to 1000psi. Have used them quite a bit in caves! They get hammered
> in that instance because they don't have the water cooling & can get very
> hot.
> Other people have oil filled spot lights used on off road vehicles
> successfully, but I wanted more of a race car look to my sub & wanted to
> avoid the oil.
> If a housing or light came up that was suitable & easy to adapt I would
> use it.
> But bare in mind that most online lights would need marine anodizing.
> Alan
>
>
> On Wednesday, December 30, 2020, 08:08:07 AM GMT+13, Rick Patton via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> I built my own aluminum exterior light housing, 6 each, using a cob led
> bulb that was 10,000 lumens, DC 34 volt and about 100 watts. My friend
> found them online and they were about $3.50 each.
>  I fried a number of them due to poor heat sink or driving them too much
> and finally got them dialed in. I asked my friend to buy some more and he
> said that the source in Japan does not sell them any more.
>  I found something similar here in the U.S after hours of searching that
> matched pretty closely to what I had but they were about $38 each. Is
> anyone using something similar as far as lumens goes that has any sources I
> could try or is that price about the best I can do?
>
> Rick
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20201229/966dd4be/attachment.html>