Kemo M172N Bicycle Power Charge Controller USB Connection for Mobile Phones, Navigators, PDAs, MP3 Players on Bicycle Dynamo Input voltage up to max. 70V with LED Indicator : Amazon.co.uk: Business, Industry &
BICYCLE DYNAMO POWERED USB CHARGER - 6VAC To 5.2VDC - Brocott UK
Supernova The Plug III Dynamo USB Charger - Portland Bike Shop | River City Bicycles