Engineered for the ultimate road cyclist, the Hotrod(TM) 90 unleashes a powerful 90 lumens of flashing output for unprecedented night and day cycling safety. Its cluster mounted array of LEDs work in unison for an extra-wide and powerful output, maximizing your presence on the demanding roads. Be seen all the time with 24/7 Safety Technology(TM), an exclusive set of solid and flashing modes to increase your safety when cycling, night and day. Every bit the road cyclist's tail light, the Hotrod 90 uses a Versatite(TM) flexible mount compatible with most seat posts including aero styles. Performance - 90 lumen red tail light with 6 lighting modes engineered for use on roads and commuting - Continuous array of LEDs work in unison to illuminate an extra-wide and powerful glow - Ultra low profile, water-resistant design only weighs 35 grams - USB rechargeable, internal battery lasts up to 100 hours - Water-resistant design - 1:30 ~ 100 hr run time - System weight: 35g Technology and Safety - 6 modes: High Flash - SteadyPulse(R) - Zoom - Group - Low Flash - High Steady - SteadyPulse's steady beam helps motorists better gauge their distance from you while the overlapping pulses keep them alert of your presence - Sturdy and flexible Versatite(TM) mount attaches to most seat posts and seat stays, including aero styles *Features and specs are subject to change without notice.