Just so people know, this is not the v1.5. This is the more traditional Q8.
Awesome. The source code has some requirements in its license though. On the product page, could you add a notice that it uses free software, and add a link to the source code?
This link goes to the latest version in the repository:
https://bazaar.launchpad.net/~toykeeper/flashlight-firmware/trunk/files/head:/Tom_E/narsil/
You’re right, it’s not the v1.5, it is the “traditional” Q8, but a bit different from the BLF Q8 anyway. It does have the XPL HI and some other changes noted by Sofirn.
By the way, Sofirn, I like the battery tube with the new knurling and no flat sides!
I like the battery tube more than on the old Q8, too.
But - What does the “T” on the switch stand for?
I thought it stands for the manufacturer of the old Q8 - THorfire - will we get a different switch-cover on the Sofirn Q8?
Or are they also manufactured by Thorfire??
Sofirn is the company who made the Q8 for Thorfire. I don’t know if they will source new covers. They probably have hundreds of the T logo covers and will just continue using them. Maybe they will comment on it. It makes no difference to me.
Love the options that Sofirn is bringing to the table, some excellent and some not such great ideas. Well, Sofirn’s ideas appear sound but the ideas of going for 20,000 lumens in this light are sure to get someone in a bind somewhere. Insufficient cooling. Take it from someone who knows… 
I wonder if they tweaked/updated the NarsilM v1.0 of the BLF Q8 for the new Sofirn Q8 with XPL-Hi (eg. using NarsilM v1.2 would make it better, adding momentary tactical and also strobe modes get accessed better).
Would there be a big enough different for XPL-HD to XPL-Hi in terms of the heat management features or other features of the previous BLF Q8 NarsilM? And also wondering, if the Anduril for BLF Q8 will also work on the Sofirn Q8 (assuming they used the same MCPCB and only the LED changed and minor stuff)
Yes, the regular Sofirn Q8 will use NarsilM v1.2. I don’t know about the v1.5 that this thread is focused on. You can find the Group Buy here.
Heat related stuff is the same.
It should be the same driver so Anduril will work.
T stands for nothing but for better finger touching. It could be many dots or other designs but we already have this. We might use new design of the cap if there is good new idea.
Do you have any ideas?
I assumed “T” was for Thorfire. If you did order new ones, maybe use a “S” for Sofirn. IDK, it’s not a big deal. Maybe even a blank cover.
I’d say don’t waste time or money on new caps. Use up what you’ve got. It doesn’t change the functionality of the light.
I want a seperate battery tube that use 3*26650 or 3*21700, or some big boys like that. That way i can have longgggg run time thanks to the bigger cells. And when needed i can switch to the conventional 18650 tube again with no hassle. What do you think? :face_with_monocle:
3 x 26650 5700mah = 17100mah
3 x 21700 5000mah = 15000mah
4 x 18650 3500mah = 14000mah
There’s not a big difference. If using the 26650 Shockli 5500 or Keeppower 6000 (both are about 5700mah) then you get a 22% increase in capacity. That would help a little, but not a whole lot.
And unless you run it down to vapors anyway, it’s not going to be terribly noticeable.
Will it be possible to buy the 2 new tubes (with battery carrier)? And will it work with the original Q8 driver?
Aye, but i’m using only 3000mAh cells. Beside when the voltage drop (say after 40mins-1h)so does the light. I’m hoping the 26650 can retain the high output a little longer? I have little experience with these cell honestly, just looking for a reason to try them out 
@TheOnlyDocc, yes it will be possible to buy the whole carrier array separately.
And yes, it will work with the original driver since the carriers are all in parallel.