<div dir="ltr"><font color="#000000" face="Times New Roman" size="3">
</font><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Emile, a couple of questions:</font></div><ul><li><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Are you using the /Bridgelux Vero 29 BXRC-50G10K0-L-24 array, if not what Vero 29 part number?</font></div></li><font color="#000000" face="Times New Roman" size="3"></font><li><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">On the Sensor Extreme LED driver, are you using the 2050mA factory output current? If not, which factory current? This would match pretty well the 2.1A current draw on the Vero 28 at maximum power.</font></div></li><font color="#000000" face="Times New Roman" size="3"></font><li><div style="margin:0in 0in 10pt"><font face="Calibri"><font size="3"><font color="#000000">The driver doc says “Maybe you need to cool the driver, attach him if necessarily with an electrically insulating material such as thermal pad on a metal surface/heat sink”.<span> </span></font></font><font color="#000000" size="3">I don’t see any kind of metal surface on the driver to effectively mechanical/thermally connect this to a heat sink.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">In your enclosure, do you use a heat sink on the driver?</font></font></div></li><font color="#000000" face="Times New Roman" size="3"></font><li><div style="margin:0in 0in 10pt"><font size="3"><font color="#000000"><font face="Calibri">Is your LED enclosure 1-atm air filled or pressure compensated with oil?<span> </span></font></font></font></div></li><font color="#000000" face="Times New Roman" size="3"></font><li><div style="margin:0in 0in 10pt"><font face="Calibri"><font size="3"><font color="#000000">Are you connecting these directly to a 36V nominal AGM battery bank (30-40V)?<span> </span></font></font><font color="#000000" size="3">If so, the driver documentation says “It is important to ensure that the input voltage <= total-Led voltage. (Boost Principle).</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">If not the LED(s) get to much voltage and can damage! </font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">If you had a new fully charged 36v bank, the actual voltage would be around 40V.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">If the Vero 29 wants 38v, is this an issue?</font></font></div></li><font color="#000000" face="Times New Roman" size="3"></font><li><div style="margin:0in 0in 10pt"><font face="Calibri"><font size="3"><font color="#000000">You said that you do not run the light at full power?<span> </span></font></font><font color="#000000" size="3">Why?</font></font></div></li><li><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Can you share a picture of the enclosure?</font></div></li><li><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Can you run these lights out of water?</font></div></li><li><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">What kind of electrical disconnect to you have on the light enclosure.</font></div></li><li><font color="#000000" face="Times New Roman" size="3"></font><span style="line-height:115%;font-family:"Calibri","sans-serif";font-size:11pt"><font color="#000000">This looks like a great LED driver. I am considering it for the 10K PSUB light project which is on hold pending finding a LED driver.</font></span></li></ul><div><span style="line-height:115%;font-family:"Calibri","sans-serif";font-size:11pt"><font color="#000000">Best regards</font></span></div><div><span style="line-height:115%;font-family:"Calibri","sans-serif";font-size:11pt"><font color="#000000"><br></font></span></div><div><span style="line-height:115%;font-family:"Calibri","sans-serif";font-size:11pt"><font color="#000000">Cliff</font></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 28, 2017 at 3:07 AM, emile via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">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" target="_blank" rel="noreferrer">https://pcb-components.de/led-<wbr>aufwaertswandler-boost-step-<wbr>up/led-senser-xtreme-200-<wbr>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-<wbr>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>
______________________________<wbr>_________________<br>
Personal_Submersibles mailing list<br>
<a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.<wbr>org</a><br>
<a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="noreferrer">http://www.psubs.org/mailman/<wbr>listinfo.cgi/personal_<wbr>submersibles</a><br>
<br>
<br>
______________________________<wbr>_________________<br>
Personal_Submersibles mailing list<br>
<a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.<wbr>org</a><br>
<a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="noreferrer">http://www.psubs.org/mailman/<wbr>listinfo.cgi/personal_<wbr>submersibles</a><br>
</blockquote></div><br></div>