I've been using this headlamp. If you're going ultralight it's a little on the heavy side but it's INSANELY bright balanced against good battery life. My only frustration is the controls for all the different settings can be a little tedious. Always a few minutes of re-learning when I use it.
Alpha SL Pant Men's Lightweight, packable, waterproof and breathable GORE-TEX® alpine pant, designed for maximum mobility. Our lightest, most compressible, waterproof pant, designed for take-along emergency use when the weather takes a turn for the worse. $259
Summer Camp Packing Tips - Everything you need to have happy campers!