ENEDED

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.

Ok - Just took measurements of the same setup back to back to back, & using my meter, there is no appreciable difference with the leads reversed.

Well, I can’t speak for anyone else. But for me, it’s good to see you back in the game. I’ve missed reading your awesome build threads! :bigsmile:

+1 - it really is an inexpensive platform for something of this size. Looking forward to O-L's results - sounds like a plan .

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.

:frowning:

Gearbest dropping the ball again, sigh. :|

I interpret GB's 3-5 biz days as this:

"we ain't got it, but we thinks we can get it quick"

So technically true - anything 3-5 biz days is not in stock with GB. The "we thinks" part can drive you nuts at times though .

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.

MAY’s answer was “we may get it next week, if it comes”. Not good enough for me, “3-5 days” here means it shipped and will take 3-5 days to arrive.

Sorry to disorganize the GB. It looked like it was on hold and not moving forward, so I posted about GB.

Back to the original thread.....

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

Yikes, with May saying 'if it comes', I'd be in doubt for sure. Glad to see the GB is getting a bump. Thanks freeme, again!!

I confirm that, just recieved a mail, they ask me could i wait just a little….10-15 working days, maybe a little bit more….

What can i say, i was so exited about that flashlight….

Oh well, stock is acceptable. Time to start setting aside cash for batteries for this ridiculous beast. :P

Have batteries, will wait.

Nice to see you contemplating again Justin, warming up a bit huh? :wink: 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.