The Nitecore HU60 focusable headlamp is a focusable headlamp with a maximum brightness of 1600 lumen designed for outdoor activities like trekking, caving, climbing. Fully focus the HU60 to 100% spotlight and you get a powerful beam that reaches 177 yards, ideal for exploration and search and rescue. Fully adjust the HU60 to floodlight and you get 170 degrees of illumination that covers nearly everything in front of you, great for biking or running at night. This revolutionary headlamp brings the power, flexibility, and reliability to everyone.