• 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. 2500 lumens (boost), 1000 lumens for 5 hours (high), 20 lumens for 80 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, a multitude of mounting options and even Bluetooth compatibility.