Armytek Prime A1 XM-L2 (Warm) Impressively powerful headlamp with 345 lumens brightness running only on one AA battery TIR-optics provides wide light for efficient area illumination Reliable headband made of soft and flexible materials for comfortable fixation of the flashlight on the head Easy operation and 4 comfortable modes of light output Small and light, but at the same time durable and multi-functional headlamp