The Bright Eye Light Set includes a 5 lumen front light and a pair of rear 2 lumen lights. Made from silicon for easy application to your bike, as well as added weather protection, these LED bike lights offer up to 200 hours of runtime.·        2 High power LEDs·        Front light: 5 lumens·        Rear lights: 2 lumens·        Integrated lens·        Silicone straps ·        Constant Mode: 100hrs·        Flash Mode: 200hrs·        Battery type: 2 x CR2032 (included)