Cygolite Hotshot Pro 150 Taillight. Features: Features a powerful 150 lumens of 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 scatters 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 Seat post and seat stay mounts included Made in the USA Specifications: Brightness: 150 Lumens Battery Type: Rechargeable (Micro USB) Run Time: 2 - 210 Hours Beam Color: Red Color: Red Weight: 59g