The stunningly bright 2 watt red LED of the original Hoshot 2W is incorporated into the smaller profile of the Hotshot Micro. Road-proven 2 watt red LED. New Enhanced Cycling Optics is engineered to scatter the beam to widen your visual presence. 5 modes Single Flash, Zoom Flash, SteadyPulse, Steady, Group mode. SteadyPulse's steady beam helps motorists better gauge their distance from you while the overlapping pulses keeps them alert of your presence. Group mode emits a low steady beam without distracting cyclists behind you during group rides. Micro USB rechargeable internal Li-ion battery. New Versatite flexible mount fits most seat posts and seat stays, including aero styles. 2 30 to 100 hr run time. Road-proven 2 watt red LED New Enhanced Cycling Optics is engineered to scatter the beam to widen your visual presence Group mode emits a low steady beam without distracting cyclists behind you during group rides Micro USB rechargeable internal Li-ion battery New Versatite flexible mount fits most seat posts and seat stays, including aero styles