The Black Diamond Storm 400 projects more than just a simple shaft of light. This LED headlamp lends greater control over your light source for a breadth of situations, be they camping, climbing, or hiking. PowerTap Technology enables users to flip between full and dimmed power instantly, in addition to three different colored night vision modes and peripheral white lighting for close-range activities. That means youre able to survey surroundings near and far in the dead of night. You can even keep the elements in check with its waterproof/dustproof housing. Course all these features fall short without having a clear pulse on your power source. So make sure to keep an eye on the Storm 400s six-setting, three-LED battery meter. A critical feature for reading is how much longer this headlamps four AAA batteries (included) have to burn.