If you have a dynamo hub then the Revolution charger by Sinewave cycles is all you need to turn pedal power into DC power for all your electricals!
The Sinewave Cycles Revolution is a bicycle dynamo powered USB charger. It converts electricity generated by hub and bottle dynamos to USB output. The Revolution allows users to charge USB-powered devices while riding.
Starts charging at 3.5 MPH (5.5 km/h)
Full charging at 9 MPH (14.4km/h)
Max current: 1 Amp
Also works with DC input up to 52V
Weight: 37 grams
Dimensions: 54mm x 35mm x 14mm
Wire length: 36″ (91 cm) (contact us if your setup requires a longer wire)
Wire ends: Stripped wire
Gold-plated USB connector won’t rust or corrode