Cateye hl el135 3 led front light the incredibly stylish but compact el135 measures just 25 x 35 x 9cmusing 3 leds and opticube technology means it is 60 brighter than the el 120rated 1010 by cycling weekly includes flex tight bar bracket for rapid easy fitting complies with rvlr 2 x aa batteries included 80 hour constant 320 hour flashing