The smart lunar 25 lux front light is one single high power led which produces 25 lumens of output smart lunar 25 lux front light features front light high low and flashing modes front light up to 7 14 or 20 hours run time in high low flashing mode using 2aa batteries included front light intuitive mounting bracket installs without tools general features tough construction withstands extreme weather conditions general features limited lifetime warranty general featu