Pelican's HeadsUp 2710 LED Flashlight gives you a highly efficient headband light with output of up to 24 lumens for 2 hours. There's also a low-level red and green light setting that helps preserve night vision, a signaling S.O.S. red beacon light, optical 4x magnification for choosing wide or penetrating beam, and a white beacon light.
Red S.O.S. signalling light
Red and green night vision lighting
Optical 4x magnification