At about half the output with the 219b, looks like the LH351D dedomed would indeed be a good option for this light. Do you think you will swap one in to replace the 219b in your H53fw?
FWIW, here’s a trick I used for this mod that has helped with similar mods involving complicated wire paths. I wrapped a piece of shrink tubing around the LED lead wire ends before pulling the electronics module out to solder.
The tubing gives me enough slack to work on the driver and I can simply pull the lead wires back through afterwards without having to thread inside the tube.
Love it, pc_light and gChart what you guys did!! These are one of the best regular priced deal lights around, for these 2 styles of headlamps! I got one of each now, 2 headlamps for like $26 total shipped, and they are moddable, very lightweight so very practical, and of course e-switch so we can run our best firmware. All around a true moddable winner! I really have to control myself from ordering a case of these things, of course knowing that's a lot of mod'n... But actually, your mod of a MCU replacement is about as easy as it gets, as long as you have the capability to reflow an SMD.
Ohh, not to mention you retain the stock USB charging....
Replaced the XPL HI 5D I had in my modded Sipik 58 with LED Lenser style optic with an Oslon flat from International Outdoors.
The FET driver proved to be too much for the emitter to handle even when powered by just by an ICR 14500. Ended up swapping out the Oslon and replacing it with an SST20 4000K 95 CRI. Definitely better than the Oslon, but not sure if it’s any better than the XPL HI.
The higher binned SST-20's, like the 5000K or 6500K, should do better than a XPL HI V2 but don't think the 95 CRI's will. Haven't seen direct evidence of this, but the #'s Hank has on his Emisar web page listings show some of this, given the optics/power setup.
Well, the SST-20s do have 30% more candela/lumen compared to the XP-L HI.
Meaning:
SST-20 65CRI = Tighter and more intense hotspot compared to the XP-L HI, meaning you get more throw.
SST-20 95CRI = Tighter, but less intense hotspot, meaning you will get about the same throw as the XP-L HI.
Hey nothing fancy for me just pulled the Osram from my new Tool and popped a N219B behind the TIR.
And the Osram made its way into a single mode loaner light