3 LED 5000 Lumen OutPut The bike light is very bright, the maximum output is 5000 lumens, and the three LED lights cover a wide range, allowing you to ride at night to see wider and farther areas. With anti-glare optics design, the lamp prevents pedestrians or oncoming cars from being dazzled and provides you with enough safety and inconvenience for oncoming people. . USB rechargeable saves you the hassle of replacing batteries every week! The bike's front light and rear light are USB rechargeable. It charges from your computer or any device with a USB port. With a 2000mAh battery, 2x more powerful than other bike lights, our LED bike front light lasts up to 2.5 hours on the brightest setting and 20 hours on the lowest setting. . Three lighting modes and versatility High, low, fast flashing three modes, free to switch according to your needs. The headlight also has a flashlight function which can be used in various scenes, such as cycling, camping, night fishing, walking. . Reliable and easy to install The bicycle headlight battery indicator can tell you if you need to charge. The multi-function headlight is equipped with a mounting bracket and a pen clip that can be easily attached to the handlebar, 10s remove the headlight from the bracket, it is very convenient for you.Bring a fully charged bicycle light out from home makes you feel more comfortable and safer. . Versatile, more than a lightweight bike Durable, lightweight and water resistant. Can be used as an emergency flashlight, keep it inside your car, basement, attic and emergency kit. Use it when running, jogging, hiking, camping, walking your dog, biking, changing tires, family/kids night activities, power outages and more! .