SecurityIng Waterproof Headlight 1800Lm 4 Modes 3 LEDs Headlamp & Bicycle Light + 4400mAh Battery Pack + Charger for Outdoor Sports Super Bright Bike Headlamp - Maximum brightness comes to 1800 lumens. Can throw a beam over 500 feet into the darkness. 4 Modes Available - Intelligent circuit control, single button on the back of the lamp cycles through multiple settings (full beam - middle beam - low beam - strobe mode) Battery Included - Comes with powerful rechargeable 8.4V 4400mAh battery pack as power source. Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. Can be used as Headlamp or Bicycle Light - The bike light comes with a head strap and 2 rubber sealing ring, either handlebar mount or head strap mount is available. With elastic rubber band sealing ring, it can also working as a headlamp. Easy to install and use. Waterproof Design & Sturdy and Durable- Anodized aluminum with glass lens, waterproof and weather resistant. Perfect item for outdoor sports, such as camping, traveling, hiking, cycling, searching.