[Leafguy]

I've used one of those cheapo inflatable solar powered lights that look like a 3 or 4 inch cube when inflated. Has worked great so far. Also take my decades old Petzl just in case.

[dave allyn]

I generally carry 2 headlamps. Spare batteries are hard to change in the dark and the batteries are the heavy part anyway. Higher lumens aren't necessarily the most important thing. More lumens equals quicker battery drain. Low to mid levels are plenty for around camp and trails. High lumens are needed for off trail route finding. Examples: alpine start summit attempt or late return, rescuers heading to injured climber way up some canyon side with no trails. My current favorite headlamp is the Petzl Tikkina. 2.6 ounces, 3 light levels, 1 simple, secure button. My old favorite was the Black Diamond Spot. Still a great headlamp, but the continuous variable brightness requires a sensitive button, which is easily turned on if you forget to lock it.

[RumiDude]