This Cateye Volt 200 XC & Rapid Mini light set is a minimalist setup for riders who want to be visible but also need some help lighting the way on darker roads & cycle paths. The Volt 200 XC puts out 200 lumen though a Cateye Opticube lens to give you a decent beam of light. The Volt 200 XC & the Rapid Mini both fit to the bike with simple rubber straps & are designed to look unobtrusive & not to make your bike look cluttered. Both lights are USB (Universal Serial Bus) re-chargeable so you can easily top them up at the start or end of your commute. Cateye Volt 200 XC Front Light 3 modes: High / Low / Flash Runtime: 200lm: 1 hr, 30lm: 4 hrs, 100lm: 20 hrs Recharge time: 3 hours USB (Universal Serial Bus) rechargeable Cateye Rapid Mini Rear Light Triple LED with one powerful centre LED Up to 25 lumen output USB (Universal Serial Bus) recharge Li-Ion battery Flextight compatible O-Ring attachment with adapter included Modes: Constant / Flash / Rapid / Pulse Runtime: 3 30 hrs depending on mode Weight: 31g Opticube lens technology Battery auto save Low battery indicator Light mode memory