SUPER BRIGHT & LONG RUNTIME: The bicycle headlight is equipped with 3lED high-brightness light beads,illuminating the road you ride at night.The running time of the headlight is 5-12 hours,and the running time of the taillight is 50 hours,which can meet your long time riding lighting needs. CHARGING INPUT & OUTPUT: In addition to the normal USB input rechargeable function,this bicycle headlight also has a USB output function.It has a power bank function that can charge your phone.This is a very important when you are riding outdoors. DURABLE & EASY INSTALLATION: Made of high-quality aluminum alloy shell,which is very sturdy and has good impact resistance and heat dissipation.The headlight and taillight are very easy to install,no tools are required. MULTIPLE USES: The headlight and taillight can be widely used in a variety of scenes.Suitable for cycling,fishing,running,dog walking,hiking, camping,changing tire,night time family,kids activities or other activities.In special circumstances,it can also be used as an emergency flashlight. ONE YEAR FREE RETURN: Lsan will provide customers with satisfactory one-year free return service.If you have any questions,please feel free to contact us viaModazoneemail.Go ahead and buy with confidence - without hesitation.