Made for the serious bike commuter, what more can you ask for in your Light & Motion Urban 300 Bike Light? With a Eco-friendly USB rechargeable battery, you don't need to worry about finding the right little thumb battery next time. The Urban 300 is creating a new paradigm in bike lighting and safety, as well as giving you some bang for your buck with a incredibly bright 300 lumen output for such a tiny package as well as increasing visibility with 2 side lights. Made to forge a new path in bike light design, you are sure to be seen and be safe with you Light & Motion Urban 300.