I’ve been super busy at work lately but finally got some time this arvo to work on this. My soldering and execution is not real good so this is kind of a proof of concept. As a result i had bad connections etc… and it took several goes to get it to function properly.
I had a simple yet satisfying evening swapping drivers and emitters in two hosts:
S21A, LH351D 5000K, 20mm, SST40 6A
C8+, SST40 6500K, Mtn FET 17mm
This is actually my second S21A that just arrived from Mtn. Electronics. My first S21A fits all my 21700s but this one has a smaller inner diameter. I added an older convoy pocket clip but sealed it with heat shrink. It needs 6mm hex fasteners. I think the S21A is perfect for the LH351D.
I had my 5000K in the C8+ but the SST40 has quite a tight beam with this reflector. After reading about the choices of an XPL-Hi or an SST40, I chose MORE LIGHT with perhaps, a little less throw.
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It all started with discovering here on BLF that Lexel made a better driver for the Haikelite MT07 Buffalo. Same light that was entered in the Old Lumens Flashlight Challenge 2019. So I ordered the 12v 6amp driver, the stock driver is 6v. The problem started when I could not find a 36mm 12v mcpcb, so I modded the existing one, and my first attempt was poor. And I’m pretty sure the re-flow was poor to boot. I did find the Haikelite store and ordered 2 more and try again to modify one to 12v. Also ordered some Kester RF741 No-Clean Electronics Rework Flux 6cc Syringe to help next time re-flowing already used led’s. I am still not sure what caused it to fail, so any suggestions are welcome. Do you think 18 ga between the driver and mcpcb is too big ? Still learning what no to do :person_facepalming:
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I accidentally ripped off the top copper trying to bend the wire around the mounting screw. I later realized the reflector would contact the solder, so it was necessary to move the connection outboard and file the reflector to get clearance.
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These switch wires are confusing, so i found the White and Black were on and off so i onle hooked those up and left the switch leds disconnected. Any help on this would be great.