just seen this item on ebay: http://cgi.ebay.com/U-Stone-Bicycle-Light-w-Generator-Very-Nice_W0QQitemZ7182429786QQcategoryZ22689QQrdZ1QQcmdZViewItem WTF! am i reading this wrong? is this a mistake? i never seen a 20 volt 10 watt generator. most are 6 volt 3 watt. i seen on occasion 12 volt 6 watt dynamos, but even those are hard to come by. if this is legit, i wonder much drag this system must have. it must be miserable....