The set of front and rear bike light AXA GREENLINE SET 50 LUX. AXA Greenline are bike lights with a USB accumulator charging system. The front light offers great intensity of lighting and two light settings. The lights can be easily charged with an USB cable within 3 hours and last up to 13 hours. The back light uses one LED, charges in 1.5 hours and lasts 4 hours. It also has a great visibility of up to 300 meters.