We are constantly researching dynamo hubs and lights so that we can give you the best advice on which combination to get on a given budget. We also think a lot about how to fit the lights and where the wires should go. The end result puts the wires somewhere unobtrusive and protected. The light should cast its full beam in just the right spot. On some bikes this can be very fiddly, but once its done right you should never need to think about it again.