Extremely Bright Bike Light: Front bike light up to 6000 lumens with CREE T6 5 LED. Better illumination and perfect beam pattern WITHOUT dark spots or hazy light. ;Longer duration: the bicycle front light battery has been increased from 3200mAh to 6400mAh, which can last about 2 hours in strong mode light, 3 hours in flash mode and 6 hours in low light mode, perfect for night riding. ;Widely Usage: The bicycle headlight battery can be used for outdoor activities in rainy weather. It is convenient and safe. Used for headlamp or bicycle headlamp for running, walking, fishing, hunting, camping, hiking, night etc. ;3 switch modes: The bicycle light has high / low / strobe three positions, the light can be switched freely as you like, one key operation, easy to use for everyone.