The SureFire Maximus™ Vision rechargeable variable-output LED headlamp features a specially selected high-efficiency LED that delivers 450 lumens of warm-colored light — similar to that produced by tungsten lamps — that's easier on the eyes of some users and is excellent for penetrating dust and fog. If that's too much light, you can dial it down to 1 lumen—or any level in between—for closer work, preserving your dark-adapted vision, or extending the runtime.