Front and rear bike light set 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. Both lights use rechargeable batteries rechargeable via USB using the supplied cable. The illumination time is around 12 hours for the front light and around 10 hours for the rear light. Front light intensity: 20 Lux Front light range: up to 40m Light modes: 2 Charging: via USB