Cateye el130omni 3 light set the cateye front and rear light set using 2aa batteries in each lamp perfect safety lights to help you be seen in dull or dim conditions el 130 front bike light led technology a fantastic and economical way of staying safe on the roads low battery usage uses only 2 x aa batteries included 100 hours on constant and up to 400 hours on flashing mode approx omni 3 tl 135 rear bike light all new led tail light with 3 powerful leds and 360 degree visibility tripl