Powerful central rear LED light with 5 modes and up to 70 lumens of output4 red fibre optic strap lights with 3 modes and highly visible silver reflective piping. USB rechargeable lithium battery & charge lead includedVisible from the rear and sides. Unique and adaptable fitting system. Can be worn over clothing or fitted to a backpack (adjusts up to 35 litres)Multiple flash and fade settings. Multiple output options for power saving. Allows access to all zips and pockets whilst in placeRun times from 3.5 - 20 hours. Water resistant construction (IP65). Safety, visibility and flexibility assured with the Commuter X4 Personal Illumination SystemThe Veglo Commuter X4 Rear Light is a revolution in cycle lighting. The three dimensional design allows drivers to see you from more angles and helps them judge your speed and distance, making you safer on busy roads.