YUKON Princeton Tec This is the ultimate headlamp ... lightweight, compact, multiple power options, focusable, rugged and waterproof. Powered by 3AA batteries (located on back of headstrap) this light has an LED Mode for super long burn times and two modes (high beam and ultra high beam) of incandescent light for seeing at distances. Burn time: Xenon: 3-5 hrs / LED: 120 hrs Lifetime Warranty, Water resistant, Made In USA.