SUPER BRIGHT BIKE LIGHT TO KEEP YOUR SAFE adopt of extra bright LED bead for Natfire bike lights set, provide 3000+ lumen and up to 300+ feet beam length ,You will be shocked and amazed at how bright it is! Five light modes- High, Medium, Low, strobe and sos light modes. so you can see clearly no matter on a urban road or on a dark lonely country road, excellent to keep you safe at night. USB RECHARGEABLE Save your time to replace batteries every week. Never waste money on batteries anymore. Natfire bike light and optional red rear light come with a CHARGING CABLE that charges from your computer, power bank or any device with a USB port. 10000mAh large capacity and Built-in intelligence IC can prevents overcharge or over discharge and extend battery life. This bike headlight has a Runtime of 7+ hours on the highest setting and Runtime of 15+ hours on the lowest setting. (Depends on the battery you choose, larger battery capacity, longer runtime) WE THINKING MORE FOR YOUNo any tools needed making it easy to install. Easily mounted and secured with the adjustable mount. it's very easy to take off from bike for recharge and prevent thieves for stealing, portable design for rechargeable bicycle headlights.Water resistant rated to IPX5 - Protected against splashing water from any angle. Product Parameters Model: Bicycle Light NX8 Material: Aluminum shell Mode: 5 Light Mode Working voltage: 3.7V Waterproof: IPX5 Range: About 300-500M Battery:10000 mAh Surface craft: Abrasion resistant anodizing Tips: If you do not use it for a long time, please charge it every three months. Do not shine into the eyes. Keep away from flammable and explosive materials. Waterproof grade is IPX5. Do not immerse the bicycle light in water. Place the bicycle lights correctly. Keep out of reach of children to avoid accidents.