Dynamo hubs provide a source to give you light to see by and keep your electronic devices charged when you are far from civilisation. All you have to do is keep pedalling.
Juice is a highly efficient, low drag device with a 6V / 3W output. Tested down to -20ËšC it is ready for extremes and suitable for road, cross and mountain bikes.
We do not recommend charging your expensive electronic gadgetry directly from the hub dynamo. It provides an unregulated AC output that you will need to convert via a USB charger to provide a reliable DC current.