Thanks to 80T’s post I was able to mod my Utorch UT01 with the GT Micro driver and a LH351D 3500K.
I tried to get Anduril on there but I had some weird issue where it would work fine then strobe and become unresponsive after a minute or so. Reverted back to the stock firmware and it seems to be working now.
Does just under 1,000lm with a Vapcell button top. The reflector in this light is really great and forgiving when it comes to focusing.