Cygolite Hotshot Pro 120 Taillight. Features: Features 120 lumens of powerful flashing output, bringing unprecedented safety to the everyday cyclist 6 modes: steady, zoom flash, triple flash, single flash, random, and SteadyPulse. SteadyPulse's steady beam helps motorists better gauge their distance from you while the overlapping pulses keep them alert of your presence Extra wide beam Enhanced Cycling Optics efficiently scatter the beam to maximize your visual presence OSP Technology lets you fine tune brightness and flash speeds (patent pending) Low battery indicator Light mode memory recalls last mode used Built-in clip attaches to clothes or seatpost mount Assembled in the USA Specs: Model:Hotshot 120 USB Lumens:120 Modes:6 Rechargeable:Yes Color:Black/Red Weight:59g