I have been searching for a generator or 'dynamo' (preferably one built into the hub) to run lights for night riding, but it seems that most are rated for only about 3W (presumably to meet German ...
Are there LED based dynamo powered lights suitable for night time MTB riding on singletrack? Likely they would need to have: High Brightness, likely 500 lumens or better. Not sure how that translates ...
I currently have a Supernova E3 Pro powered by a Shimano hub generator, and I would like to add the ability to charge USB-powered gadgets. My main concern, however, is that simply wiring up a charger ...