* 50 lumen flash output * Run time: 2:30 to 200h* Mini USB rechargeable* OSP® technology lets you maximize your visibility by adjusting the flash speed or brightness* 6 lighting modes: Steady – Zoom - Single Flash - Triple Flash - SteadyPulse™ * SteadyPulse™ mode alerts motorists with attention-grabbing pulses while constant beam helps gauge their distance* Low battery indicator for power awareness* Light mode memory recalls last mode used* Water resistant design for all riding conditions* Seatpost mount included* Lightweight 55 g