A proper front light for serious night-time riding. The large rechargeable battery provides up to 32 hours of run time on the lowest setting, or 2 hours of ultra-bright 800 lumens for maximum visibility which is perfect for dark country lanes. The built-in VLS system allows you to set the brightness at any setting you like just by holding the button to your preference. This mode is also saved so you can access it again easily.Features: Up to 800 lumens USB rechargeable VLS – Variable Lumen System Lock Mode – Protect your battery and prevent accidental turn on Waterproof to IPX 4 Light Memory Mode – Stay on the same mode even when you turn the light off Lumen and Run Time are tested under ANSI FL-1 Standard 7 modes. Run time: Boost: 800 lumens – 1.30 hours Mode 1: 550 lumens – 2.45 hours Mode 2: 100 lumens – 13.45 hours Flash 1: 100 lumens – 63 hours Steady Flash: 200 lumens – 32 hours Day Flash: 400 lumens – 77 hours SOS: 83 hours