Specification: 1. Flashlight Type: Dive Headlight 2. Emitter type: XM-L L2 LED 3. Brightness: 2000 lumens maximum brightness 4. Waterproof: 50-100 meters underwater 5. Battery settings: 1 x 18650 battery 6. Modes: 3 modes (high-low-strobe) 7. LED lifespan: 100,000 hours 8. Material: aluminum alloy 9. Lens: Coated glass lens 10. Reflector: Aluminum textured reflector 11. Housing color: black 12. Weight: 167g Waterproof: IPX8 Package content: 1*headlight 1*18650 battery 1*battery charger