This powerful dual LED taillight puts out ultra bright 350 lumen flashes in an extra wide and long range beam pattern that makes cyclists stand out both day and night 7 modes: Steady, zoom, SteadyPulse, Bzzz flash, triple flash, day flash, random flash Features a 2 button design which lets cyclists control the speed of each flash mode and the brightness of the steady mode to their preference Low battery indicator Light mode memory recalls last mode used Builtin clip attaches to clothes or either the included seatpost or seatstay mount Assembled in the USA