Cygolite Metro 750 USB Rechargeable Bike Light; Astonishing 750 Lumen Bicycle Headlight for Road Cycling, Mountain Biking, and Commuters; 6 Different Lighting Modes for Day and Night Safety 750 lumens engineered to amaze. See the difference this powerful 750 lumen light makes in illuminating far and wide on the roads and trails at night Stand out in broad daylight with special DayLightning mode. This one-of-a-kind flash mode acts as daytime running lights to maximize your safety Patent pending SteadyPulse mode alerts motorists with attention grabbing flashes while an overlapping steady beam constantly lights your way at night 6 powerful light modes to choose: High (1:30 hr run time), Medium (3 hr), Low (16 hr), SteadyPulse (3:30 hr), DayLightning (11 hr), Walking (150 hr Built tough and water resistant. Cygolites been producing innovative bike lights in California since 1991. Dont be fooled by cheap imitations