120 lumen red tail light with 7 lighting modes for road cyclists Continuous array of LEDs work in unison to shine an extra wide and powerful glow Ultra low profile, water-resistant only weighs 35g USB rechargeable with 1:15 to 70h of run time, and 3h recharge time Built-in 24/7 Safety Technology gives 7 night/day modes (DayLightning High Flash, High Steady, Group Low Steady, SteadyPulse, Zoom, Bzzz Flash, Low Flash) SteadyPulse mode features a steady beam to help motorists gauge their distance while overlapping pulses keep them alert at night Zoom mode signals those around you with a gentle change in brightness New on Hotrod, Bzzz Flash mode alerts those around you with highly visible fast buzz-like flashes Low battery indicator alerts you when a charge is needed Light mode memory saves the mode you're in before the light is turned off VersatiteTM flexible mount attaches to seat posts including aerobars Designed, engineered, and assembled in the USA 
