KRYPTONITE Alley F-800 front light

Features: - Fully USB Rechargeable-No batteries to buy or replace - Run time up to 24 Hours - Side illumination ports allow cyclist to be seen when riding across traffic lanes - Memory Function-Light turns on at the last mode it was turned off - Power saving function- 10% power or less, lights will automatically switch to lowest lumen output - Built in battery indicator Specifications: - Mode: High Steady - Run Time (Hrs): 1:30 - Lumens: 800