System Includes: LED headlamp with internal Li-Ion battery, handlebar mount, USB charging cable (5.5 hour charge time) * Run Time: 1.5 hours on High (550 lumens), 3 hours on Medium (250 lumens), 5.5 hours on Low (150 lumens) and 18 hours on Walk (40 lumens) * One piece modular design with 4 light levels and flash mode * Wireless and USB rechargeable * Offers less overall mass than its predecessor for