[quote=drdanke]
Note the MT-G2 has a Vf of ~6v, so a single 18650 won't light it up at all.
It has a Vf of 6V at 3A. Drops down much lower when powered lower, rises up to 7 or more when given the current. Now, it might be true that a single 4.2V Li-ion won’t run it at all, haven’t tried it, but I have seen it’s forward voltage way down there when in moon mode. One of the 4.35V cells might do something with it, albeit it would be very low.
I know it varies with current and temperature but didn't think it was ever below ~5.5-5.7V in practice. I have an MT-G2 in a Convoy M1 direct drive, I just tried a Sony 18650 @4.17V, no visible light.
Is that a permanent set-up? How do you normally power it if so?
Anyone ever put an extension on an M1, I assume the heat would be too much to bother?
There is something going on there that I don’t understand. I have seen it lower than your numbers, but when using a driver and 2 cells. Why would it still fire up with regulation circuitry at a level that direct drive will not power it?
Hey Nbabu, I’ve shipped out your pill today! 
Ill have the 2nd last HD2010 one please.
Shipped to Australia No rush I need to get the HD2010 anyway. Will be my first mod, no idea what too, but dont want to kick myself for not grabbing the copper now.
Sorry, I just saw your question. Normally it's powered by 2 IMR18350's.
Perhaps someone with an infrared camera could take a video of a sliced or segmented pill from a scrapped mod that went bad. Perhaps one could watch the progression or path of the heat as it flowed through the light using the different materials and shapes as discussed. A flashlight thermal test bed if you will.
Sorry… I think I am in the wrong thread.
Convoy C8 pills still available?
Man nice big hunka copper…wow!
Nope, sold out and no current plans to produce more.
Sorry for the late reply.
Ryan, I’m still very thankful for the job you did on these…they’re making several lights into favorite lights and kicking butt! 2 HD2010’s, 1 Convoy C8 with plans for another and each driven as hard as they can be pushed. Love the weight, the solid feel of the light in hand. And how well done they were, the machinist you picked really did it right and it’s greatly appreciated.
The 3 that I used for the Trifecta really showed the difference, extended run times in Turbo modes being the critical difference. Those are out there in the Wild somewhere, being enjoyed I hope! My last C8 pill is being worked in as we speak, with designs to really tweak things with these new FET boards.
AND, has anyone seen the latest news from Cree? An XP-L! Rated at 3A, over 1000 lumens easily, keeping the same XP footprint for easy use on the boards we already have. It appears to also have a lower Vf, so we’ll see how de-doming this new crittur works out! Wonder how long it’ll be before we see these available? 2014 is shaping up a fun year for us flashaholics! 
Waiting for round 2…
Have fun!
Glad to know you’re enjoying them Dale.
I just skimmed through the Knucklehead driver thread and seems like you guys are getting somewhere, never give up!
I’ll have to give it another thorough read through after my exams, and I may be able to jump into some programming and circuit building.
Wow, first time hearing about XP-L’s. Any info/datasheets about them? Having a max rated current with an XP footprint sounds very promising, can’t wait to see some ultra throwers with them. If we push them beyond 6A, maybe we can hit 1M Cd pretty easily?
Dale, can you look into the future? Nothing about an XP-L on the Cree site or on the entire internet 
.
They announced them in the wee morning hours. Lower Vf than the XP-G2, 23% brighter, with the top V5 bin making 460 lumens at 1050mA. They’re showing CRI from 70-90. I have no idea how long it’ll take for some to be on the market. Oh, and the 3A max rating doubles the existing XP footprint. I think we might be able to do something with this one!
Sounds too good to be true :-) My builds are on hold ;-)
Do something? Heck yes! Woohoo!
(Don't sprain your wrist clicking buy, just an ignorant seller typo.) 
Some less than reputable sales people once told me that "If you pitch it long enough it'll come true". LOL. I think there's an awful lot of flashlight vendors on the web that must believe that.
I know they’re saying it’s an XM-L, but it’s got the 4 dies of a SSC-P7 looks to me like. But still, with 2 XP-G’s it COULD make 1800…maybe.