To follow up on MichaelW's post LightSpin dynamos are not yet readily available in the U.S. You can order their basic model direct from the manufacturer. Reproduced at the end of this post is a copy of the email I got from them.

Even though I just bought a VistaLite CODE 15 10W-5W dual system, I am still intrigued by dynamo units and may yet mount one on Yorick.

Speaking of the VistaLite, here is an update. For several days, I have been leaving the light on until it dims, then recharging in order to get through a few cycles and hopefully get the battery up to full capacity so I now think I can give a pretty good account of battery life. Today, using the 10W light only, the battery lasted almost exactly 2 hours, which I think is a shade more than mfr claims. In the interest of full disclosure, I did turn it off for about 5 minutes (deducted from the total time) from the front door to my office. That may have allowed it a few extra minutes vs being on the whole time.


Email from Dynosis:
(CHF=Swiss Francs)

The model without standing light, LightSPIN-lite is exported at following
cost, please order

LightSPIN-lite without standing light CHF 90.00 (left or right
side model)
fixation bracket with earth screw CHF 12.00 ( only if
needed)
postage to USA , registered CHF 25.00

shipment against advance payment by VISA / Master Card

The model with standing light, LightSPIN-plus will most possibly cost CHF
160.00.

Regards
DYNOSYS AG
Werner U. Stettler
wstettler@dynosys-ag.ch