I am a total flashlight nerd dude.
The best headlight ever imo is a Zebra light with the flood lense and an 18650 battery.
The UI and runtime is unreal. Waterproof, tough, insanely bright, and not just for a few minutes, check out run times below. It allows you to adjust
and save three pre picked brightnesses select them from the button without cycling through the others and blinding everyone. It goes from moonlight
low to about 1400 lumens.
If you buy the smaller headlight model's mounting piece, it holds an extra battery perfectly on the strap.
Light Output (runtimes)
High: H1 1400 Lm (PID, 2.8 hrs) or H2 875 Lm (PID, 2.9 hrs)/502 Lm (PID, 3.2 hrs)/264 Lm (6.3 hrs)
Medium: M1 127 Lm (13.8 hrs) or M2 56.4 Lm (28 hrs)/22.9 Lm (2.8 days)/8.5 Lm (7.3 days)
Low: L1 2.9 Lm (18.5 days) or L2 0.92 Lm (1.5 months)/0.26 Lm (3 months)/0.07 Lm (4 months)
Beacon Strobe Mode: 0.2Hz Beacon at Low / 0.2Hz Beacon at H1 / 4Hz Strobe at H1 / 19Hz Strobe at H1
Run any 18650 flashllight on AW batteries only imo.
AW Protected 18650 3400 mAh on this one is great.
I've got about 6 years of heavy, almost daily use with no noticable performance drop and have used it in the pool and ocean.
Sounds like a sales pitch, but it is an unreal light, I've run most brands, and they suck in comparison. Even the high end "pretzles"
Runs for 4 months on low lol, but the 13.8 hrs runtime at 127 lumens is probably the most impressive number there.