100 lumen flashes makes you stand out in broad daylight and at night (50 lm steady)Built-in 24/7 Safety Technology gives you a powerful selection of 6 day and night modes (Steady, Zoom, SteadyPulse, Triple Flash, DayLightning Flash, Random Flash)Freely adjust the brightness of Steady mode and the flash tempo of the flashing modes with the simple 2-button interfaceSteadyPulse mode features a steady beam to help motorists gauge their distance while overlapping pulses keep them alert at nightDayLightning mode emits lightning-like flashes to highlight your presence in the brightest of daytime hoursZoom mode signals those around you with a gentle changes in brightnessEnhanced Cycling Optics expands your presence with an extra wide and long range beam compared to conventional tail lightsUSB rechargeable internal battery lasts up to an impressive 270 hoursLow battery indicator alerts you when a charge is neededLight mode memory saves the mode you`re in before the light is turned offCompact, water resistant design only weighs 59 gramsSeat post and seat stay mounts includedRack mount compatibleBlack6RearQRUSB100UPC/EAN/GTIN: 745025065251