Interested, looking forward to seeing the update.
Just do it, take my money already 
Whoever has the actual driver for this and is working on it, is it “regulated” as in, fully regulated? most AA lights I have used are regulated for AA (Boost driver) but linear(declines with voltage) for 14500s.
Interested.
interested
Interested.
any idea on when?
Fear not! This probably is not a….
But it may still take a while 
I really hope this version will soon become available. Lexel has not been around here for almost 2 months.
what a great movie song
An SP10S with Anduril! INTERESTED! 
There are no Anduril lights that run on AA, they ones that exist only use LiIon.
Anduril lights have both regulated output (regulated up to 120 lumens on the FW3a), and direct drive for highter lumen levels.
Anduril lights also change brightness in response to thermal regulation, also depending on how many lumens you ask for. (anything over 500 lumens will not be sustainable, and thermal regulation will kick in to limit output and heat, iirc)
I’m in if this happens
Right but this entire thread is about development of a driver that would accept both 14500 and AA. It would indeed be a first, and that’s why there are questions about its capabilities.
Count me in
that is not my impression
every time the AA portion of the conversation surfaces, I find it is set aside in favor of LiIon only
IF this thread produces an AA capable Anduril light, I will be interested, but so far, I have not seen any indication of that happening. I hope it does.
You seem very deeply interested and yet also highly cynical about this project, jon_slider. You could always hire an electrical engineer and have them build a board perfectly to your specifications. 
I second that. I’d like to see a 1.5/4.2v capable driver for AA/14500 and Andruil. The electrics needed for that are complex though and I get it if they don’t want to redesign a board from the ground up to make that happen. That adds cost and complexity. It’s just so easy to do 4.2v only and call it good. Plus higher performance. Most of us would use it with lithium ion anyway.
Bingo 
This post has been around the block about 30 times. Just make the damn 14500 version and we can have it in a few weeks- according to Barry it won’t take long. I’ll buy several on the spot if so. Besides, just like those who went from D cells to 18650s, there are the “hanger-on’ers”… the AA crowd who can stick to their guns for another six months until MAYBE they can figure a 1.2V version of Anduril into this thing. But the SC31 Pro is proving the small Anduril light is in demand… and it’s just a matter of WHO will do it first in the 14500 form factor.
I’m not saying there aren’t any, but all the dual-fuel lights I know have screwed-up mode-spacing for one chemistry vs another.
Eg, my Xeno E03 has kinda nice spacing with alkaleak/NiMH, low is actually low, and high is just meh, but spacing is rather nice. With Li-ion, everything’s just brighter. Flick through H/M/L, and it’s like 100%/80%/60%, everything just pushed higher.
Low-volt chemistry needs a boost converter to feed the LED, but with Li-ion it’s linear or a buck converter. So scaling/matching levels for both chemistries will almost always suck. At least PWMing either a FET or 7135s stays proportional, but that does not translate well to a different controller (ie, boost circuit) running in parallel.
I expressed interest in this about a month ago. Since then the SC31 Pro has been released. I very nearly ordered one, but I’m going to wait to see if other emitters are offered. I mention this here because the recent discussion has been about the necessity of AA Anduril support. I hope this (AA support) happens and I hope it isn’t just an afterthought on a 14500 driver, as Lightbringer implied could be the case. And as Zappaman eluded to, scaling Anduril to a smaller LiIon form factor isn’t groundbreaking, shouldn’t be all that difficult, and I think will happen sooner or later (and, to be fair, he did say he’d buy several).
But having a tiny flashlight with tons of features that runs on boring old AA (or, imagine, AAA!) single battery, that would be unexpected and novel.
From my perspective I can put this a different way:
SP10S BLF Anduril 14500, I may buy one for myself because it’s small and special.
SP10S BLF Anduril AA (and 14500), I may buy one for each of my family members, friends, friend’s children, etc. with no concern about needing to educate them regarding loose LiIon handling / care. And definitely buy one for me.