<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1467520367522_3669"><span id="yui_3_16_0_ym19_1_1467520367522_3668">Cliff,</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3674" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3673">I just had another look at the Bridgelux Vero 29.</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3689" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3708">It is a similar size to the 40-80W leds I have been buying, but has the round</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3709" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3710">format rather than my square ones, & should put out a more even light pattern.</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3722" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3767">Also there is a pdf with a lot of information, whereas I don't have that with mine.</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3766" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3765">With that information you would be able to back off the voltage & current if it gets too</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3986" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3998">hot, to a known quantity.</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3997" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3996">There is this plug in unit for them if you don't want to use the solder tabs</span></div><div id="yui_3_16_0_ym19_1_1467520367522_3779" dir="ltr"><span id="yui_3_16_0_ym19_1_1467520367522_3784"><a id="yui_3_16_0_ym19_1_1467520367522_3783" href="http://www.molex.com/molex/products/family?key=picoezmate_harness_for_integrated_led_arrays&channel=PRODUCTS&chanName=family&pageTitle=Introduction">http://www.molex.com/molex/products/family?key=picoezmate_harness_for_integrated_led_arrays&channel=PRODUCTS&chanName=family&pageTitle=Introduction</a></span></div><div id="yui_3_16_0_ym19_1_1467520367522_3824">Also of interest is this glass lens that should be fairly pressure resistant.<br></div><div id="yui_3_16_0_ym19_1_1467520367522_3823" dir="ltr"><a id="yui_3_16_0_ym19_1_1467520367522_3915" href="https://www.alibaba.com/product-detail/kinglux-78mm-120degree-glass-lens-for_60393368138.html?spm=a2700.7724857.0.0.ACLywl">https://www.alibaba.com/product-detail/kinglux-78mm-120degree-glass-lens-for_60393368138.html?spm=a2700.7724857.0.0.ACLywl</a><br></div><div id="yui_3_16_0_ym19_1_1467520367522_4112">However I have been Googling & not come up with anything off the shelf for driving individual leds.</div><div id="yui_3_16_0_ym19_1_1467520367522_4097">Perhaps this is a question that should be directed to Bridgelux! Let me know if you find anything.</div><div id="yui_3_16_0_ym19_1_1467520367522_4121">There are drivers available for driving 2 or 3 lights simultaneously, & these lights seem popular</div><div id="yui_3_16_0_ym19_1_1467520367522_4120" dir="ltr">for growing marijuana. Did you say you were mounting these on the inside or outside of your hull?</div><div id="yui_3_16_0_ym19_1_1467520367522_4132" dir="ltr">You could always use the square 80W emitters that operate off 32-36V in your housing design.</div><div id="yui_3_16_0_ym19_1_1467520367522_4150" dir="ltr">As I have said before, I can't see any point in trying to put the driver in the back of the light housing</div><div id="yui_3_16_0_ym19_1_1467520367522_4205" dir="ltr">as these drivers have heat sinks themselves, & the added heat from the led would cook them.</div><div id="yui_3_16_0_ym19_1_1467520367522_4199" dir="ltr">Also you could dissipate the heat from the driver straight out the back without the electronics in the way.</div><div id="yui_3_16_0_ym19_1_1467520367522_4118" dir="ltr">Cheers Alan<br></div><div id="yui_3_16_0_ym19_1_1467520367522_4018"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1467520367522_3614"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1467520367522_3707" style="display: block;"> <div id="yui_3_16_0_ym19_1_1467520367522_3706" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1467520367522_3705" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1467520367522_3704" dir="ltr"> <font id="yui_3_16_0_ym19_1_1467520367522_3716" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1467520367522_3768"> <b><span style="font-weight: bold;">From:</span></b> Cliff Redus via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, July 3, 2016 3:05 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] PSUBS light project status<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1467520367522_3776"><br><div id="yiv7696968359"><div id="yui_3_16_0_ym19_1_1467520367522_3775"><div id="yui_3_16_0_ym19_1_1467520367522_3774" dir="ltr"><div id="yui_3_16_0_ym19_1_1467520367522_3912">Alan/ALec, ran across this small DC-DC boost converter for $4 on Ebay <a href="http://www.ebay.com/itm/222115591904?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT" target="_blank" rel="nofollow" shape="rect">http://www.ebay.com/itm/222115591904?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT</a>. This is not an LED driver as it does nothing but boost the voltage but for those that want to use this 10K Bridgelux LED array on a 24VDC buss, it should work. </div><div><br clear="none"></div><div id="yui_3_16_0_ym19_1_1467520367522_3773">Modules nature: Non-isolated step-up (Boost)<ul id="yui_3_16_0_ym19_1_1467520367522_3772"><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Rectification: Non-synchronous rectification</font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Input voltage: 3.5V-35V </font></div></li><li id="yui_3_16_0_ym19_1_1467520367522_3771" style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal" id="yui_3_16_0_ym19_1_1467520367522_3770"><font id="yui_3_16_0_ym19_1_1467520367522_3769" color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Output voltage: 5V-56V (Must ensure that set the output voltage is higher than the input voltage)</font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Input current: 3A (max), Rated current:2A</font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Conversion efficiency: 90% </font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" face="Arial" size="3" style="margin: 0px; padding: 0px;">Dimension: 43mm(1.69")*30mm(1.18")*12mm(.47") (about the size of two postage stamps)</font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" size="3"><br clear="none"></font></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><font color="#000000" size="3"></font>This dimension would easily fit in the 1 atm enclosure I designed and in fact, we may be able to shrink the enclosure even more. I have ordered some to play around with along with the Bridgelux LED <a href="http://www.digikey.com/product-search/en?keywords=976-1277-ND" target="_blank" rel="nofollow" shape="rect">http://www.digikey.com/product-search/en?keywords=976-1277-ND</a></div></li></ul></div><div class="yiv7696968359MsoNormal" style="margin: 0px; padding: 0px;"><br clear="none"></div><div class="yiv7696968359MsoNormal" style="margin: 0px; padding: 0px;">To use this on my boat, I would have to rewire my HV box to feed the exterior lights of the regulated 24VDC buss rather than the unregulated 36VDC battery bank but this would be easy.</div><div class="yiv7696968359MsoNormal" style="margin: 0px; padding: 0px;"><br clear="none"></div><div class="yiv7696968359MsoNormal" style="margin: 0px; padding: 0px;"> Would be better to get a proper LED driver but this might do until someone sources a small LED driver that fit the spec Ken developed.</div><div class="yiv7696968359MsoNormal" style="margin: 0px; padding: 0px;"><br clear="none"></div><div><ul><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal"><br clear="none"></div></li><li style="margin: 0px; padding: 0px;"><div class="yiv7696968359MsoNormal">Cliff<br clear="none"></div></li></ul></div></div><div class="yiv7696968359gmail_extra"><br clear="none"><div class="yiv7696968359gmail_quote">On Sat, Jul 2, 2016 at 3:05 PM, Alan via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote class="yiv7696968359gmail_quote" 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;"><div class="yiv7696968359yqt6102690600" id="yiv7696968359yqt78474"><div><div>Cliff,</div><div>what voltage are you running on your sub?</div><div>You can generally run these leds at a lower voltage & it is </div><div>beneficial to them. If you have a bench top power supply that goes to 36V, you can</div><div>slowly power up the led without a driver & check if it is bright enough at 36V. Don't</div><div>do this for more than a second or so or you may destroy the led. I am having a 48V </div><div>system, but the choices in electronics that are compatible, dramatically drops over a 36V system.</div><div>I have looked at just about every off the shelf led dc driver on the planet.</div><div>cheers Alan</div><div><br clear="none"></div><div><br clear="none"><br clear="none">Sent from my iPad</div><div><br clear="none">On 3/07/2016, at 7:03 am, Cliff Redus via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div dir="ltr"><div>This LED driver will not work for the 10K lumen Bridgelux LED as it needs 38V forward voltage , 2.1 amps and 80W. This driver can only get up to 36V.</div><div><br clear="none"></div><div>Cliff</div></div><div class="yiv7696968359gmail_extra"><br clear="none"><div class="yiv7696968359gmail_quote">On Fri, Jul 1, 2016 at 11:39 PM, Alan James via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote class="yiv7696968359gmail_quote" 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;"><div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div><span></span></div><div>Alec,</div><div>I have been working on a light housing. Have attached a dwg but it is not finalized.</div><div>I would have had it completed but have been waiting a Month on a replacement motor</div><div>for my lathe :(</div><div>I am using a square 50W LED, but you can get 60 & 80W LEDs the same size.</div><div>I am NOT putting the driver in the light housing, it ends up sitting at the back of the LED</div><div dir="ltr">where there is a massive amount of heat generated from these high power LEDs.</div><div dir="ltr">Keeping the driver in the hull makes it easy to change out if it fails. </div><div dir="ltr">I am going with an acrylic lens & oil compensated. I would have liked a borosilicate pressure</div><div dir="ltr">resistant lens but it was going to cost $100-+. Also if there is a leak with a pressure resistant</div><div dir="ltr">housing, electrolysis can pressurize it with hydrogen gas.</div><div dir="ltr">I am not using a reflector as they don't seem to do anything with these big LEDs. They are really</div><div dir="ltr">rows of little 1W LEDs,10X6 for a 60W. So you get light being emitted from either side of the inch</div><div dir="ltr">wide emitter, that is hard to control, especially when you are wanting an 80 degree wide angled</div><div dir="ltr">flood light.</div><div dir="ltr">My design also revolves around local stock aluminum tube sizes.</div><div dir="ltr">The LEDs are around 30 to 36V. I am using these as drivers. $4.64 US, not bad.</div><div dir="ltr">Alan</div><div dir="ltr"><a href="http://www.dx.com/p/5a-constant-current-led-driver-module-battery-charger-red-433947#.V3dE1bh96Uk" target="_blank" rel="nofollow" shape="rect">Constant Voltage Constant Current DC-DC Power Module for Arduino</a><br clear="none"><br clear="none"></div><div><br clear="none"></div><div dir="ltr"> <a style="color: rgb(0, 0, 0) !important; text-decoration: none !important;" href="http://www.dx.com/p/5a-constant-current-led-driver-module-battery-charger-red-433947#.V3dE1bh96Uk" target="_blank" rel="nofollow" shape="rect"> <table style="max-width: 400px;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td width="400" rowspan="1" colspan="1"> <table width="100%" style="max-width: 400px;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td height="" valign="top" bgcolor="#000000" rowspan="1" colspan="1"> <table style="width: 100%;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td height="" valign="top" bgcolor="transparent" rowspan="1" colspan="1"> <table height="185" style="width: 100%; min-height: 185px;"><tbody><tr><td style="padding: 15px 0px 0px 15px; text-align: left; vertical-align: top;" rowspan="1" colspan="1"> <span style="color: rgb(255, 255, 255); font-size: 18px; font-weight: bold;"> $ 4.64 </span> </td><td style="padding: 15px 15px 0px 0px; text-align: right; vertical-align: top;" rowspan="1" colspan="1"> <div></div> </td></tr></tbody></table> </td></tr></tbody></table> </td></tr><tr><td rowspan="1" colspan="1"> <table align="center" style="background: rgb(255, 255, 255); border-width: 1px 1px 3px; border-style: solid; border-color: rgb(224, 228, 233) rgb(224, 228, 233) rgb(0, 0, 0); width: 95%; margin-right: auto; margin-left: auto; max-width: 380px;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td style="padding: 16px 0px 16px 12px; vertical-align: top; background-color: rgb(255, 255, 255);" rowspan="1" colspan="1"> </td><td style="padding: 16px 12px; width: 99%; vertical-align: middle;" rowspan="1" colspan="1"> <h2 style="margin: 0px 0px 4px; line-height: 19px;">Constant Voltage Constant Current DC-DC Power Module for Arduino</h2> <div style="color: rgb(153, 153, 153); line-height: 15px; font-size: 11px;">I like this from DX. Find the cool gadgets at a incredibly low price with worldwide free shipping here.</div> </td><td style="padding: 16px 12px 16px 0px; text-align: right;" rowspan="1" colspan="1"> </td></tr></tbody></table> </td></tr></tbody></table> </td></tr></tbody></table> </a></div><div><br clear="none"></div><div style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br clear="none"> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, July 2, 2016 1:41 PM<br clear="none"> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] PSUBS light project status<br clear="none"> </div> <div><br clear="none"><div><div dir="ltr">Hi gents,<div><br clear="none"></div><div>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? </div><div><br clear="none"></div><div>Thanks,</div><div><br clear="none">Alec</div></div></div><br clear="none">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none"></div> </div> </div> </div></div></div><br clear="none">_______________________________________________<br clear="none">
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