<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Cliff,</DIV><DIV> This is really great ! Will Psubbers be able to use this design , machine the housings, and source the parts out to build our own lights ? If so it would save a lot of running around !</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: Cliff Redus via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] LED recommendations<BR>Date: Sat, 2 Sep 2017 08:59:05 -0500<BR><BR></DIV><DIV dir="ltr"><DIV>Emile's email got me back on the Psubs 10K LED light project which has been on hold waiting for a driver. This LED driver is perfect for driving the 10K lumen Bridgelux LED array we spected. It will work for 12V, 24V and 36V system. Also because it is so small it enabled me to reduce the size of the 1-atm enclosure to 3" diameter x 2.85" long. In the spirt of KISS a custom PCB has been abandoned as well as the provisions for dimming. The driver has provisions for dimming but for this installation, it is not implemented. With not having a custom PCB we loose the polarity and overcurrent protection but the driver has built in overtemperature proection. I have updated the drawings for the light and Jon has uploaded them to the PSUBS.org site. See <A href="http://www.psubs.org/design/">http://www.psubs.org/design/</A> and click on Lights to download PDF drawings including a wiring diagram. I completed an FEA analysis and the enclosure should be good for 1000m. At this point we need to build one of the lights as a prototype and test. I have a test chamber I can use to test the light. I am thinking about fabricating one of the lights for the bow of my boat but I have to figure out where to mount it and how to get power to it. </DIV><DIV><BR></DIV><DIV>This is a draft set of drawings. Comments/suggestions welcome.</DIV><DIV><BR></DIV><DIV>Regards</DIV><DIV><BR></DIV><DIV>Cliff</DIV></DIV><DIV><BR><DIV>On Mon, Aug 28, 2017 at 3:07 AM, emile via Personal_Submersibles <SPAN dir="ltr"><<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>></SPAN> wrote:<BR><BLOCKQUOTE style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">Hi Jon,<BR>
<BR>
The Pilotfish team and me developed a UW LED lamp. Since the Norway expedition on my sub. So happy with it that I like to recommend it.<BR>
It is a Bridgelux Vero 29 unit with 80 Watt (abt. 300 watt Halogen) Wide (90-100 deg) angle but that is okay for a sub. Housing is can go down to 800 M and has a 80 mm OD.<BR>
Dimmable, I don’t run it at full power.<BR>
LED driver 6-40 VDC : <A href="https://pcb-components.de/led-aufwaertswandler-boost-step-up/led-senser-xtreme-200-2050ma-6v-30v-detail.html">https://pcb-components.de/led-aufwaertswandler-boost-step-up/led-senser-xtreme-200-2050ma-6v-30v-detail.html</A><BR>
<BR>
<BR>
Br, Emile<BR>
<BR>
-----Oorspronkelijk bericht-----<BR>
Van: Personal_Submersibles [mailto:<A href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</A>] Namens Jon Wallace via Personal_Submersibles<BR>
Verzonden: maandag 28 augustus 2017 4:29<BR>
Aan: Personal Submersibles General Discussion<BR>
Onderwerp: [PSUBS-MAILIST] LED recommendations<BR>
<BR>
<BR>
While we're in the middle of an LED investigation, can those of you actively diving with LED lighting give us a guideline on a range of lumens we should be striving for (per lamp), how many lamps, spot or flood?<BR>
<BR>
I know Alec was using an oil-filled 3000 lumen lamp on SNOOPY before selling it. I've been looking at PRIMELUX 8100 lumen lamp that seems like it could be easily adapted for oil or air compensation. Generally I would say more light is better but also need to be careful about power consumption so I don't want to purchase more light than is necessary for general operations.<BR>
<BR>
Jon<BR>
<BR>
<BR>
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