USB Charge With Long Run Time:once buy Soonfire FD38S bike light includ 2*3400mAh Battery,don't need buy batteries anymore.you can use max of 32 hours with constant luminance when charge one time.it can be recharged over 500 times.
Simple Assembly and Disassembly:FD38S bike lights simple assembly and disassembly,just need few seconds without any tools, IP67-rated water resistant and designed for use in heavy rain,Its durable aluminum body and shock-resistance endure rough handling.
Portable Appearance Design: two vision headlight,built-in micro USB charging port,without annoying wires and bulky battery packs,1870-lumen (max) Cree LED sweeps bright light over the length of about two football fields and reaches nearly 500 ft.
High Quality Bike lights:Illuminate your path, it will also last longer,meeting the demand for advance warning of greater than or equal to 120km/h riding,It is extremely durable and indestructible, even on the toughest terrains. Guarantee to work rain or shine.
Applicable for handlebar size: 22-35MM (adjustable in size and suitable for most bike),245 g Versatile Bicycle Light Design with Universal Mount Fit Can be used for a wide range of activities: road biking, city commuting, hybrid bikes, gates & fences, grills & lawnmowers, sports equipment.