• ADVANCED FOCUS SYSTEM: Rapid focus technology enables single-handed flood to spot zoom. EASY DIMMABILITY: The Wheel Switch on the front of the headlamp lets you dial in your preferred brightness. CONSTANT LIGHT OUTPUT: Constant light output means your headlamp will maintain a more consistent level of brightness. 1000 lumens (boost), 600 lumens for 4 hours (high), 15 lumens for 65 hours (low). WATERPROOF AND TOUGH: An IP67 rating means your headlamp can be submerged up to 1 meter underwater for 30 minutes. Drop proof to 1.5 meters. Backed by Ledlenser's 7-Year Warranty. LEDLENSER CONNECTING SYSTEM: A range of accessories (sold separately) allow for colored beams and a multitude of mounting options.