200 lumen single LED red tail light for use on roads and commuting Built-in Enhanced Cycling Optics expands your visual presence with an extra wide and long range beam compared to typical lighting optics 2-button design to adjust speed of each flash mode and brightness of Steady mode Built-in 24/7 Safety Technology with 6 day and night modes (Steady, Zoom, SteadyPulse, Triple Flash,DayLightning Flash, Random Flash) SteadyPulse: steady beam to help motorists gauge their distance while overlapping pulses keep them alert at night DayLightning: lightning-like flashes to highlight your presence in the brightest of daytime Zoom: signals those around you with a gentle changes in brightness Hard seat post mount and seat stay mount Light mode memory saves the last mode you're in Compact, durable and 59g IP64 water resistant for use in all weather conditions USB rechargeable with 2 to 210h runtime Low battery indicator Designed, engineered and assembled in the USA 
