Front bike light with USB charging. The intensity of the front light is 20 Lux, which guarantees a great light cone range and the confidence that you will be able to see for a long distance.the light uses a rechargeable battery that can be recharged via USB using the supplied cable. The illumination time is around 12 hours. Front light intensity: 20 Lux Front light range: up to 40m Light modes: 2 Charging: via USB