Light and Motion are an amazing company making amazing product. I’ve been using the Urban 500 for a few months now, and it is the perfect commuting light. It attaches easily and can be focused up or down by simply turning it. It charges via a USB cable with your laptop or desktop, and lasts a very long time on a single charge. I ride approximately four miles in the dark every workday, and I only need to charge it once a week. That’s at the high setting, so I imagine on a lower setting you might be able to go longer. There is an indicator to warn of a low battery, so no need to worry about it going dark with no warning. The Urban 500 is simple and bright. This is key to a good commuter light, and the reason many of my friends here in LA are using it. Bike Hugger recently posted a review on the Urban 500, a very good read for those interested in Light and Motion. I am definitely a fan, and will continue to support this company in the future.