Tom is barely around any more. :cry:
So the lvp only works when the light is turned on? Well that is a bummer. I assumed it worked all the time.
I wonder what’s causing his drain, though.
AFAIK no LVP can prevent undervoltage by parasitic drain,
Yeah, I guess that makes sense. You actually need to MCU to be operating and taking samples of the voltage in order to determine whether or not it’s above or below the threshold and that process is just going to create increased parasitic drain.
Mine was from the second batch (#501-1000), which had the first batch issues fixed. It has been working great since I got it, and it gets used quite a bit. In terms of sheer number of hours, it has probably been my most-used light over the past year, but I’m not sure if that counts since it’s a whole lot of candle mode.
Anyway, no issues at all. And the button LED has been on pretty much nonstop the whole time.
Exactly.
The MCU also has BOD (brownout detection) enabled, but that doesn’t activate until 1.8V. So, if it gets that low, it’ll shut the MCU off even more than it normally can. Which probably won’t have a significant effect on the parasitic drain.
But LVP (which shuts off at 2.8V) only works when the light is actually on. And it sounds like whatever is draining happens when the light is off. So get out a DMM and start measuring things. It’s probably a hardware issue.
I have one from the second batch. It’s been flawless in every way.
Are they marked with a number?
Thanks, im using one of the MTN boards, silicone 18awg wire to leds and 4 30Qs spring bypass and brass screws.
Just over 13 amps to the emmiters.Gets hot PDQ.
Its only a super cheap SRK clone by Securitying
/\… No, they are not marked with Batch or serial numbers.
Thank you.
How many people are interested in trying a new Q8 with XPL HI leds?
And how many people are interested in a light smaller than Q8, I mean with 3 * 18650 battery tube, but with the same driver and USB C charging port?
Well, quite a bit 
I’d be more interested in a Triple XP-L HI V3 1A with the 3 Bigger Reflectors and 4 cells. :+1:
Larger rather than smaller. USB charging doesn’t add value for me.
Triple XP-L HI V3 1A with the 3 Bigger Reflectors and 4 cells +1
I agree with Sillen….
……. USB Charging on a light such as this adds nothing of value.
I don’t have any interest in xpl hi or 3 x 18650. Built in charging might be good for people who are new to flashlights.
All I really want is a stock Q8, but in CW. Something which has yet to be offered by Thorfire.
Can you make OP reflectors for Q8 and C8F?
What would be the advantage to that? It doesn’t seem to be necessary. I’m confused.
It would make the Q8 suitable for the 3V Luxeon MZ leds (on the 4040 Q8 board): great CRI plus great power with an easy mod, as long as the reflectors are heavy OP to prevent the donut hole!
Not just MZ, but there would be less beam color separation with most other LEDs too - OP reflectors always give smoother, more uniform beam which is important for high CRI builds.