Dynohub-powered USB chargers convert the power from your dynohub into usable, chargeable power for your USB devices. Basically, they provide you with a conveniently placed USB plug right on your bicycle's handlebar, stem, or any other bicycle tube. Now you can charge more than a bike light with your dynohub - use the USB charger to power your mobile phone, GPS unit, mp3 player, and more.
The dynohub USB chargers are connected to your dynohub in the same way you would connect a bicycle light, with a frame and electrical cables. The models below are available for the most popular dynohub makes and models, such as Shimano, Supernova, and Schmidt SON. However, they can be connected to any 6-12V bicycle dynamo using the compatible connectors.