Amazon.com: SH-CHEN Bicycle Dynamo Bicycle Chain Generator Charger with USB Charger for Universal Smart Mobile Cell Phone Bike Riding Equipment Industrial Motors : Industrial & Scientific
Using Your Dynamo Hub for Device Charging - Shopcast | Perennial Cycle
VeloCharger review: Dynamo-powered charging on the go | Sportive.com
Sinewave Cycles Revolution Dynamo to USB charger | Bilenky Cycle Works
Sinewave Reactor [Dynamo USB Charger] | Perennial Cycle
Sinewave Cycles Reactor
Bicycle Hub Dynamo USB Charger
Marko Mäkelä's electronics projects: 5 Volts from a Dynamo Hub