800 lumen headlight with 9 modes, 150 lumen tail light with 6 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 Freely adjust the tail light`s brightness of Steady mode and the flash tempo of the flashing modes with the simple 2-button interface USB rechargeable internal headlight battery lasts up to 110 hours, and tail light lasts 210 hours Low profile, water resistant headlight design only weighs 140 grams, tail light only weighs 59 grams Built-in 24/7 Safety Technology� gives you a powerful selection of night and day modes, headlight features 9 modes, tail light features 6 modes Both feature SteadyPulse� mode to alert motorists with attention grabbing pulses while its overlapping steady beam constantly lights the way at night Both feature DayLightning� to make you stand out in broad daylight with lightning-like flashes 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 Headlight Power lockout prevents accidental light activation Quick release handlebar and seat post mounts keep the lights securely fastened Designed, engineered, and assembled in the USA since their founding in 1991 Black 9F/6R Combo USB 800/150UPC/EAN/GTIN: 745025075113