Thanks to contactcr for pointing this thread out. Sure looks like it'll be a fun exercise in driver design! 
how is this project going, any news to update ?
I’m interested if that is still being recorded, would be really neat to have dual chemistry support, or at the least a great e-switch firmware in a AA sized light.
Interested!
There are some great ideas already but now it's up to Sofirn's engineering to develop a corresponding driver layout. Once the hardware is ready, Toykeeper may be able to start adapting Andúril to run with the new driver. The biggest challenge is to summarize the outcome of all these ideas in way that Sofirn's engineering can work with it. Furthermore, we need to find a more effective way of direct communication with their engineers to discuss technical issues. The language barrier (English => Chinese => English) might be another obstacle we have to deal with.
A with many projects all over the world, effectiveness and efficiency depend on proper communication.
It sounds like loneoceans a few posts above may be willing to help with designing a driver. I know that Sofirn has a decent driver designer in-house but this flashlight, if both full AA and 14500 support is still the goal, asks for a very special driver.
I got the same idea when he chimed in! Maybe it can be a “beginning”? :innocent:
I am interested in one!!
Interested as well!
Interested
interested in a whole bunch, if operating with a nimh battery will be assisted!
a variety of different host colors and led tints is always nice to have 
Interested if compatible with NiMH.
Interested too in a BLF GB variant. I have the SP10S in Blue, and one of my favorite EDC AA/14500 lights. It works great with wither a 14500, AA Alkaline, or a NimH AA.
Interested!
If they built a solid, sturdy, bright light that could sustain its max output for a few minutes I’d be in.
I know using an existing host would be a lot easier to do things with, but wouldn’t it be wonderful to have a tiny 14500/AA FW1A?
Also, any updates? I’m interested with the Sofirn host as well!
Interested!
Interested
Interested
I’m very interested! I have a couple of SP10s and they’re great little lights.