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)