650 lumen headlight with 8 lighting modes engineered for use on mountains, roads, and commuting Built-in Enhanced Cycling Optics™ expands your field of vision with an extra wide and long range beam compared to typical lighting optics Rugged, water resistant design only weighs 140 grams USB rechargeable internal battery lasts up to 100 hours Built-in 24/7 Safety Technology® gives you a powerful selection of night and day modes (High, Medium, Low, SteadyPulse®, DayLightning®,Triple Flash, Zoom, Walking mode) SteadyPulse® mode alerts motorists with attention grabbing pulses while its overlapping steady beam constantly lights your way at night DayLightning® mode emits lightning-like flashes to highlight your presence in the brightest of daytime hours Headlight side light ports further highlight your presence 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 140g 
