Compact and lightweight, this headlamp is so comfortable you might forget you had it on were it not for the bright beam casting light where you want it. Outfitted with three super-bright LEDs, this unit puts out 43 lumens of white light. Three AAA batteries (included) provide power for up to 146 hours of continuous use. There are four power output levels including low, medium and high, along with an emergency fast-flash strobe feature. Water-resistant. Lamp: 3 LEDs Lumens: 43 Distance: 39 meters Run time: 146 hours Batteries: 3 AAA Colors: Black.