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 deeper areas .Design, the lamp prevents pedestrians or coming cars from being dazzled and gives you enough safety and inconvenience to the people around. USB Rechargeable Save you the hassle of replacing batteries every week!The front bike light and tail light are USB rechargeable.It charges from your computer or any device with a USB port.With a 2000MAH battery, 2 times more powerful than other cycling lights, our Front LED bike headlight lasts up to 2.5 hours on the brightest setting and 20 hours on the lowest. Three lighting modes and versatility High, low, quickly flashing three modes, free to switch according to your needs.The headlight also has flashlight function which can be used in different scenes, such as cycling, camping, night fishing, walking. Reliable and easy to install The bicycle headlight battery indicator can tell you whether you need to charge. The multifunction headlight is equipped with a mounting bracket and a pen clips design that can be easily fixed on the handlebar, 10 seconds remove the headlight from the corcive, it is very convenient for you.Bringing a fully charged bicycle light out of home makes you feel more comfortable and safer. Versatile, more a Durable, Light Weight and Water Resistant Bike Light. Can be used as an emergency flashlight, keep it inside your car, basement, attic and emergency kit emergency.Use it when running, jogging, hiking, camping, walking your dog, cycling, changing a tire, night time family/kids activities, power breakdown. current and more!