Longest runtime on Medium Mode 1xAA

I use my lights in my outdoor adventure and realize the medium mode of my single AA lights is enough for all my needs, the high mode is just for the cool stuff and looking for things at a distance.
I did a runtime test of my lights from a separate thread and my Zebralight SC50w ended up the winner and now I bought another one in cool white.
SC50w - 10 Hrs on M1 mode

Anyone did a runtime test of their Single AA lights on medium mode?
- 1xAA
- Medium mode 25 to 50 lumens
- Battery used (used Eneloop on mine)