520 lumen light with 8 modes including steady, flashing, and pulsing Built-in 24/7 Safety Technology gives you a powerful selection of night and day modes (Boost, High, Medium, Low, SteadyPulse, Quad DRL Steady, Quad DRL Flashing, DayLightning) 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 Stand out in broad daylight with exclusive quad LED Daytime Running Lights (DRL) Enhanced Cycling Optics expands your visibility with an extra wide and long range beam compared to conventional lighting optics Side light ports further highlight your presence USB rechargeable internal battery lasts up to 63 hours 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 Low profile, water resistant design only weighs 75 grams Versatite flexible mount conveniently attaches to handlebars including aerobars Black 8 Front Handlebar USB 520UPC/EAN/GTIN: 745025096293