A 2 C cell Maglight with LED.
A 4 AA battery (batteries are series/parallel) headlight with a single LED.

Both are very bright, and burn a very long time. Today's alkaline batteries have something like an 8 year shelf life, so the lights are always ready to go.

I have had better service from that simple arrangement than with any rechargeable light.

I have this one, lasts forever and with adjustable settings its perfect for walking back to camp or used as a spotter 900'+ away.

https://www.fenixlighting.com/produc...ix-flashlight/