because i pulled one of my drivers out of my group buy 1504… and replaced it.
i have the driver laying around, and, figured i might as well put it to use in SOMEthing… just wondered what the driver used for the group buy puts out before i make magic blue smoke, lol
HX-1223a, if that helps… googled the board number, didnt get a match…
It’s around 1.5-2A on high if I remember correctly.
okay… cause i have the driver 1.5—->2a
i have a single 18650 small reflectored “thrower” with what ID’s to be a XP-G on aluminum star with heat stuff under the star… has a solid pill…
eh?
2A on aluminum might be pushing the original XP-G though… flashlight wiki lists 1.5A as max…
cause i have one of THESE…
this was before i was comfortable modding… i was in my period beginning where i would see “how many batteries i can put into something to make it brighter”, LMAO… i took this single 18650 and fit two primary 123’s in series into it? worked VERY WELL for a short period, then went to “only lo mode works”
diagnosis is a burnt driver power wire, and some obviously damaged components on the driver board, lol…
i discovered “zoomies” shortly after this, and forgot about this light i “broke”… man, i got this thing out other day bored? i realized the LO mode worked, took a tailcap reading of 120ma, lmFao… thats with cheap DMM and thin leads, but still… anyways, the reflector on this thing is so good? it STILL throws a “useful” (pencil) beam and distance.
then i ID’d the XP-G ? heck… i’d actually like this thing with a decent driver…
2A pushing it?
Nope, as long as it’s good and seated even the aluminum board should be able to move heat fast enough to keep the LED alive. If it was any more than that I’d recommend a direct thermal path MCPCB like a Noctigon. Even at 2A you might get a measurable improvement in output, but I don’t know that it’d effect the real world useability of the light enough to make it worth it, kind of depends on your goals.
You’re old driver burned out because it had too much voltage going to it from the 2xCR123 setup (around 6v instead of a max of 4.2 with the 18650). It’s so far over the required voltage for the LED that it creates a lot of heat in a linear driver as it tries to limit the current, so they die from excess heat.