KLS PERSEUS Set is a set of bicycle lights, intended for more advanced cyclists. Superior lighting output and sophisticated optics does not make any compromises – what matters it so see, and to be seen! •      Optical system of front light homogeneously illuminates terrain, which allows you to ride faster. It also illuminates the peripheral viewing angles in the direction of travel •      16 LEDs of the rear light increase your visibility from afar. Aerodynamic design and rubber leaflets makes it a suitable safety complement for your favorite bike •      You can re-charge both lights by using Micro USB wire anytime, and don’t have to buy any more batteries. Besides that – you are also protecting nature •      Long lasting batteries allows you to charge it up at least 500 without significant capacity drop •      Both lights comply with German Road Traffic Regulations – StVZO DETAILS OF FRONT LIGHT Lighting output: 130lm Source of light: 1x LED Functions: 100%, 50% Battery lifetime: 3hrs (100%), 6hrs (50%) Battery indicator: Green (100-25%), Red (24-5%), Flashing red (<5%) Charging time: 2.5hrs Battery type: Li-pol 3.7V 1200mAh IPX 4 (Water resistant) DETAILS OF REAR LIGHT Lighting output: 25lm Source of light: 16x LED Functions: 100% Battery lifetime: 2hrs (100%) Battery indicator: Orange (24-5%), Flashing Orange (<5%) Charging time: 1.5hrs Battery type: Li-pol 3.7V 500mAh IPX4 (Water resistant) COMPATIBILITY All common sizes and shapes of handlebars and seatpost