[PSUBS-MAILIST] LED Lights

[John Kammerer via Personal_Submersibles]

Hi Ken:

Your proposal sounds great, I would be interested in either the 10 k or 20 k LED lights. Probably more than one.

John K.
(203) 414-1000 

Sent from my iPhone

> On Jun 18, 2015, at 8:59 PM, Ken Martindale via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Any one there,
> 
> 
> I worked at a job where I designed LED drivers. I was looking at the Bridgelux Varo 29 (BXRC-50C 10K0-L-24) which has a light output of a little over 10000 lumens. 
> I bought one of these but haven’t fired it up, maybe tomorrow.
> 
> I can design the driver to interface with almost any input voltage such as 10 to 30 volts or 20 to 60 volts, etc.
> 
> They make reflectors for this LED so it would be relatively easy to come up with a number of 10000 lumen lights for your Subs.
> 
> I have some time on my hand and can design the circuitry to drive any selected LED module. Or LED.
> 
> I have the time and some funding to come up with lights for the subs.
> 
> Is anyone interested in this. We could come up with lights that would only cost the parts.
> 
> The first step would be to come up with a specification that would detail most of PSubs needs. Such as variable light output (10,000 to 20,000 lumens), over temperature protection, reverse polarity protection, LED over current protection, EMI, etc.
> 
> I would be interested in doing the design work including PWBs.
> 
> What do you guys think?  I would need help on the mechanical housings.
> 
> Cooling is a major concern but while immersed there’s lots of water. Above water Over temperature protection would prevent any damage if you left the lights on by accident.
> 
> Any interest? This could be fun. Jon??
> 
> The spec would be the first step and then with enough agreement the design process would start.
> 
> Not too interested in doing this commercially.
> 
> For what it’s worth I’m an EE specializing in switch mode power converters.
> 
> Ken Martindale
> 
> 
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