* 250 lumen headlight with 8 modes, 50 lumen tail light with 8 modes, engineered for use on roads and commuting* USB rechargeable internal headlight battery lasts up to 100 hours, and tail light lasts up to 65 hours* Low profile, water resistant design headlight only weighs 60 grams and tail light only 30 grams* Built-in 24/7 Safety Technology® gives you a powerful selection of night and day modes, headlight features 8 modes, tail light features 8modes* Both feature SteadyPulse® mode to alert motorists with attention grabbing pulses while its overlapping steady beam constantly lights the wayat night* Both feature DayLightning® to make you stand out in broad daylight with lightning-like flashes* Tail light Adaptive Flash Technology® senses day and night, automatically switching to optimal flash mode* Headlight side light ports further highlight your presence* Low battery indicator alerts you when a charge is needed* 60g / 30g