This driver was used on a MTG2 which I replaced with a 7135 qlite, the resistance from the spring to the tip of the positive wire is .22 ohms. How well would this driver work with a XHP70 Direct bonded to a brass pill with TWO purple 10 AMP 18350s , insta-KILL the XHP-70??
I bet same as MT-G2. I know the MT-G2 is good for 9-11 amps what is the best peak to run the XHP70?
With the right cells we might cook the spring?
Just throw a braided copper wire or coiled silicone insulated wire in the middle to bypass.
I ended up smoking a mtg2 in a s2+ host lol so rebuilt the s2+ with xml2 and putting this hot rod back in the parts bin. I don't think I want to use this with a $20 emitter. I have a FET on the assembly line from RMM
Is it even a driver? Or just a contact board?
True direct drive contact board with wires and spring lol. I saw probably 3000lm before blue flash and a now 100lumen mtg2.
This actually came from a p60 that was built with a mtg2 4thousand k. It will get hot real fast 2sec but you can't use it more then a sec or two or Poof. I figured with a decent host it would have been fine on another mtg2 light but nope.
Theoretically the fet should allow just as much current as true DD.
Drill a hole thru the pcb contact board and solder the lead right to the spring, then you will have a true direct drive!!! I have been doing this to the DDFET drivers on the MT-G2 and XHP70’s, I call it mainlining!
Frying an MT-G2
Can we all agree that it was not the “driver” or DD that killed the emitter?
It was the lack of sufficent heat sinking, I am thinking we are on the same page on this one.
I really fried a MT-G2, by direct solder bonding the star to different heat sinks about 6-7 times, but never by high current. XHP50 yep it took quite a beating before giving up the ghost, tough little blasturd it was!
Yeah, i have been doing lots of builds lately like that, but not with FET drivers just like the OP pure direct drive.
And even better if you are fortunate to have a brass/copper pill you can solder the led - directly to the soldered mcpcb in the pill :bigsmile: to cut out the led - wire altogether. I did my UF-1504 like that works great
All in the name of low resistance in the circuit