Get the FW3A. You will own arguably the best EDC flashlight and the lowest setting is around 0.5 lumen if i’m not mistaken.
If you just want a super affordable flashlight to play around then the get Astrolux A01. It cost around 8$ and the lowest setting is 0.1 lumen. I have one and even in pitch black you can not see much further than 3 meters.