Wondering if a price has been established. It may turn out I need all 7 they showed in the vid…. 
Appearantly you can’t buy odd numbers of tubes. You have to buy 6 or 8.
I dare you! I double dare you! :-D
Interested in 1 set to run 8x18650 for BLF Q8.
Actually it’s 1+1, the first one is connected with the head, the second one is connected with the tail. If you wanna make it longer, it’s 1+2, 1+3….1+N
The first one never change, because you need it for longer extension.
I have read that you can not use the new sets together with the original battery tubes.
That means you need 2sets for 8 batteries.
And there will be 2 different tubes, for the BLF and for the Sofirn, which has different threads.
The original battery tube has to be set aside and not used anymore.
1 set = 2 battery tubes + 2 carriers
I must be missing something…near the end of the video, he takes off the BLF Q8 head sets it down, picks up and threads on the Sofirn Q8 head onto the same tube section that he just removed the BLF Q8 head from…. perhaps it does thread on but is not water tight so after this video was done they had to made a different set of threaded tubes for their Sofirn Q8 version? Is that correct?
I have both Q8 lights and you can put me down for +1 set but if truly different threads and have to specify which one I am not sure which I would pick right now, I know…the right answer is to get one set for each!!!
Must admit that I just found this thread, read from beginning and some good LOL posts in the last half helped me forge on to the end…so thanks to those that make this fun! You know who you are (BlueSwordM included)! 
Interested in 1 set as well
1 set for me, thx
20. HONDARIDER +2
21. Greenlights +1
22. Nite Shadow +1
23. bkp +1
24. Robert B +1
For what ever reason, the Sofirn tube doesn’t make contact with the blf head. But the blf tube works and makes contact with both heads. I have both, and thats the way is works (or doesn’t work) on mine.
I mentioned this in the Sofirn Q8 post but it’s because the head of the Sofirn Q8 has 1 less thread, I assume, to account for the new style and o ring location of the Sofirn bat tube.
Yes, a Q8 orange peel reflector, please Sofirn.
Put me down the list for 1 set of BLF Q8 tubes and carriers.
I wantet 2:
Interest
1 “set” is correct.
I, uh, got impatient a little… tried something. Figured that with these new tubes coming I had the original tube to play with, hope that was figuring correctly. I, well, kinda bored the original tube and did some file work such that two 21700’s fit. So it will remain to be seen as to whether or not I can actually get these two cells to power the big light and if they actually deliver more than 4 top 18650’s.
I happen to know they can deliver nearly 40A long enough to screw things up if the light isn’t ready for that much. 
Banking on that to deliver power to 17 emitters. Not very convinced that these carriers will deliver the power I need here. Which is fine, I have other Q8’s the new tubes can be used on. 
Probably diminishing returns as far as resistance goes, the more carriers used. Something’s got to give (or melt) with 40amps
Um, I’m expecting 40A plus draw from each of two 21700’s, potentially 86 Amps total. Pretty doubtful a carrier will deliver 86A from 4 18650 no matter what cell they are. The question for me is, can the carrier be modified to deliver this kind of performance.