The Black Diamond Spot 325 Headlamp is an award-winning waterproof lamp with a compact and user-friendly design. Its multi-faceted optical lens saves battery life and also provides 325 lumens of light. You can choose the light intensity, allowing you to see clearly during nighttime trail runs, or save battery if needed. It has a high setting that will last for four hours, a medium setting that will last for eight hours and a low setting that will last for 200 hours. Its maximum beam distance is 80 meters, and three AAA batteries come included.