520 lumen headlight, 30 lumen tail light Night and day use featuring 8 modes (headlight), 5 modes (tail light) 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 Both feature an extra wide and long range beam compared to conventional lighting optics Headlight features exclusive quad LED Daytime Running Lights (DRL) Side light ports on the headlight further highlight your presence USB rechargeable internal battery lasts up to 63 hours (headlight), and 100 hours (tail light) 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 (headlight) and 35 grams (tail light) Versatite flexible mount conveniently attaches to standard and aero styles Black 8F/5R Combo Versatite USB 520/30UPC/EAN/GTIN: 745025096248