520 lumen headlight engineered for use on roads and commuting Stand out in broad daylight with exclusive quad LED Daytime Running Lights Built-in Enhanced Cycling Optics expands your field of vision with an extra wide and long range beam compared to typical lighting optics Low profile, water resistant design, 75g USB rechargeable internal battery lasts up to 63h Built-in 24/7 Safety Technology with 8 night and day modes (Boost, High, Medium, Low, SteadyPulse, Quad DRL Steady, Quad DRL Flashing, DayLightning) SteadyPulse: steady beam to help motorists gauge their distance while overlapping pulses keep them alert at night DayLightning flash: lightning-like flashes to make you stand out in broad daylight Low battery indicator Side light ports further highlight your presence Light mode memory saves the last mode you're in VersatiteTM flexible mount attaches to handlebars including aerobars Designed, engineered and assembled in the USA