Rando is designed for extended adventure perfect for dynamo setups, touring, commuting, and off-grid riding. Featuring all of the safety innovations of the Urban series, the high capacity lithium-ion battery has enough juice to power the light for a full 3 hours on high and a mighty 24 hours in daytime pulse mode! For those that find themselves on an extended adventure, Rando is the first high-visibility bike light that allows the light to trickle-charge while in use. Perfect for dynamo setups with a USB charger or an external battery pack, cyclists can now rely on powerful safety lighting even if conventional charging is unavailable.