Cateye Volt 100 Front Light is a compact bright 100 lumenlight ideal for commuting. The USB (Universal Serial Bus) recharge makes charging easy & negates the need for expensive batteries the USB (Universal Serial Bus) plug means no additional cables are required. Ideal for riders who charge their lights up during the day at work.LEDs- 1 x White LED with opticube lens Brightness- 100 lumens Battery- USB (Universal Serial Bus) rechargeable battery Run time- 1 hours to 5 hours Charge time- 1.5 hours Charging- USB (Universal Serial Bus) charging Battery life indicator- Yes Mounting- Simple O-ring attachment Light modes- 2 modes Extra features- Opticube Lens