My current commuter bike has a Nexus Generator hub and the Lumotek Oval LED light. It provides enough light to be seen, and when riding in urban areas is fine by itself. When riding in more rural, darker areas, I supplement it with a Dinotte battery powered light. I am in the process of building up a new commuter, and I will be using the Schmidt Dynohub and the Innova E3 LED headlight. I am hoping that with the new setup, I won't need to rely on the Dinotte as often.