This is a high-tech, feature-packed headlamp designed for epic back-country adventures. The compact housing is water- and dust-proof, and the main 375-lumen lamp is brightness adjustable. In addition, there are red, green, and blue night vision modes. Plus there's a power indicator so you know how much battery life you've got left. As if that wasn't enough options in a headlamp, there's also a tap sensor in the side of the housing that instantly toggles between your current setting and the maximum brightness, so you can quickly look far ahead on route to see what's coming, then dim the light back to save battery. Internal memory stores your brightness settings so you don't have to readjust every time you turn the lamp on. Comes with 4 AAA batteries.