Dang schrick, 4.7A and 5.1A are great #'s for the S4 2B. Unfortunately I don't have any right now - should order 5 from Hank... Were these cherry picked or did you get these amps from other XP-G2's? We are just trying to figure out what's goin on. If you get high amps or low amps, there still seems to be a significant range of measured amps each guy is getting on these.
I totally missed those 2 threads btw, really nice results though!
Yes, that's the one. It has been sold in a few different flavors; Large coil, small coil, with/without contact plate, 3/5 Amp. They all appear to have the same components.
If anyone is interested, Richard lists them as well.
FMC, there may be a difference as one side is supply and the other side is after the diode is using it, perhaps some inefficiency in the diode could cause the negative side to be lower than the positive side? Since current flows positive to negative, reading the negative side is actually what the emitter is using.
Reading the positive side is a good way to fry your light, slightest mishap and there’s smoke and melted things. Touch something on the negative side and you just go direct drive, no biggie. (unless you’re in a smaller light that can’t handle direct drive, then, biggie)
Hi Tom. No, not cherry picked. I think I have around 5-8 of them left. I bought them reflowed on 16mm noctigons - did not reflow myself. Will it help if I run the remaining XP-G2 S4s through my bench power supply and take amp readings? I’ve recently built myself a small amp reading setup - would be nice to use that now. I’ll take photos of each LEDs readings. Would be interesting to see how all of them compare…
I really wish I had not read this thread. I really never intended to mod anything again.
Ordered one of these from GB tonight
Have to make a new Copper shelf for the led.
Modify the Reflector - take out the center flat area in the bottom and make a custom thin centering ring. Stipple the reflector. Not going for max throw obviously.
XHP70 led and custom mcpcb.
Time to go look at what I got for drivers for the XHP70, or email RMM.
Rework the spring plate 2S/2P. Actually, the batts will probably load from the tail end now, like the modified SRKs I've done.
Make a different handle maybe.
I hate you guys. (Not really, but the wife will hate me ).
EDIT: NO STOCK AT GEARBEST. As usual, they are selling stuff that there is no stock on and as usual, I canceled the order. Thank's Gearbest, you are my best line of defense when ordering, because you never have anything in stock.
NO STOCK AT GEARBEST. As usual, they are selling stuff that there is no stock on and as usual, I canceled the order. Thank's Gearbest, you are my best line of defense when impulse buying, because you never have anything in stock.
BOSS1 gb is up for discussion today. Apologize to all for the delay, vendor overlooked one of my 4th Jan reply. I proposed for custom upgrade parts but it was turned down due to low demand (<100). Anyway, we will try our best to group buy back on track and list the stock light up for sale soon.
Hey Justin - No worries. Soon the wife will join BLF to find out what you need to mod and then order a bunch of stuff for ya....just to get you out of the house. LOL
Nice to see you contemplating again Justin, warming up a bit huh? Beautiful day today, just gorgeous out… 65 and a light breeze, blue skies, but I’m sure we’ll get some nasty yet, always seem to in late Jan or early Feb.