The Volt 300 Kit is the ultimate in flexible & adaptable lighting. Ride & recharge or recharge & ride. This kit gives you the options you need as a busy cyclist.• High power recharge front with 300 lumen• Great side visibility• 2 x interchangeable cartridge Li-ion batteries included• Battery cartridge recharge docking station included• Superlight Â- only 120g• USB (Universal Serial Bus) recharge to head unit• Helmet mount (optional)• Additional batteries available (sold separately)• 5 modes: High / Medium / Low / Flash / Hyper Constant• Runtimes: H: 3hrs / F: 60hrs