Output with the sw45k is about 135 lumens, down from 235 lumens with the stock XP-L2, which is significantly lower than Zebralightâs claimed 320 lumens. All their frosted glass headlamps seem to measure 25-30% lower than spec for whatever reason. The H53Fw is rated only 10 lumens lower than the H53w, which is clearly incorrect given the frosted lens drops the output almost 10%.
I replaced the lens with a stock frosted Zebralight lens. The 219B has a fair bit of egg yolk in the small reflector, but itâs completely eliminated by the frosted glass and looks awesome. I wouldnât mind a bit more output, but this was more a proof of concept than anything. I think a dedomed 5000K LH351D would be perfect in this light. I am really fond of this little light and would like to try other AA Zebralights.
Another photo with the reflector and potting removed:
I did say earlier I was using fast PWM on these, but I totally forgot I was running on 1mHz clock. My âfastâ PWM isnât actually very fast at all :person_facepalming:
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, hereâs 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 itâs 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.