I’ve been ondering if there are any weak link components on the origional driver that could be upgraded to reduce the risks of resistor modding? Mitko had a diode blow on one of the early manker models. I tried to prove for more information but was never replied to.
You can upgrade the inductor, the FET, the diode and then do a resistor mod.
That reminds me of the mod i was doing on the MT03… Should pick that up again soon.
You can change the large diode for a low Vf Schottky diode.
You can gain around 0.3 mV that way, but probably not that important for a driver that boosts the Voltage up to 400%
More important for 2x 18650 buck driver for a 6 Volts LED.
I love the UT02 as a host. The (old school) XP-G2 de-domed was one of my favorites!
Pulling over 6amps and throwing over 300kcd it was a laser beam jacket pocket rocket thrower!
But for a Bombastic Boomer I use the XHP70.2 UT02 the most. With the Lexel built T/A Narsil driver, copper driver adapter’s, I then bored the head out for a 32mm Maxtoch board, used a Convoy L6 white switch boot and wired off the driver, with resistors, lighted up the stock e-switch, blue or red, but I liked the red only, for DANGER!
The 70.2 P2 1A at 8+ amps is quite impressive out of this smaller light, nice over all beam with a large Hot spot with this smooth reflector.
Ask Simon for them, the L6 tail cap white/clear boot.
I like the P2-1A the best so far, less of a brown/yellow corona, ring, then say the B-C’ I have tried. The beam is white, not cold blue-ish, like the P2-1C as is the ample spill. The beam is naturally big, coming out of a short reflector, but it lights up the neighbor across the street back yard/driveway like daylight so it has decent trow for a small reflector. It would make for a nice patrol light, even say half way up the ramp it is more than enough light, but then double click for Turbo, yeah there’s no where to hide!
I’m looking at getting a couple more of these UT02’s if I can find them for the $28-$30 price I got the last 4 at? I found some interesting other 70.2’s at Mouser I want to try out. They describe them as a white/white 5700k and a white/warm 5700k? They are P2 bin but 0E and 40E?