[PSUBS-MAILIST] PSUBS light project status

[Alan James via Personal_Submersibles]

Alec,I have been working on a light housing. Have attached a dwg but it is not finalized.I would have had it completed but have been waiting a Month on a replacement motorfor my lathe :(I am using a square 50W LED, but you can get 60 & 80W LEDs the same size.I am NOT putting the driver in the light housing, it ends up sitting at the back of the LEDwhere there is a massive amount of heat generated from these high power LEDs.Keeping the driver in the hull makes it easy to change out if it fails. I am going with an acrylic lens & oil compensated. I would have liked a borosilicate pressureresistant lens but it was going to cost $100-+. Also if there is a leak with a pressure resistanthousing, electrolysis can pressurize it with hydrogen gas.I am not using a reflector as they don't seem to do anything with these big LEDs. They are reallyrows of little 1W LEDs,10X6 for a 60W. So you get light being emitted from either side of the inchwide emitter, that is hard to control, especially when you are wanting an  80 degree wide angledflood light.My design also revolves around local stock aluminum tube sizes.The LEDs are around 30 to 36V. I am using these as drivers. $4.64 US, not bad.AlanConstant Voltage Constant Current DC-DC Power Module for Arduino


  
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Constant Voltage Constant Current DC-DC Power Module for Arduino
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      From: Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Saturday, July 2, 2016 1:41 PM
 Subject: [PSUBS-MAILIST] PSUBS light project status
   
Hi gents,
I have an almost-ready sub but no lights, so was wondering whether to make them per the PSUBS-designed model in the community projects section of the website. I'm in awe of those drawings! However, they show a printed wiring board that is a placeholder for a part still to be designed. I was wondering if that might have happened, or if there might be an ETA?  
Thanks,
Alec
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