Originally Posted by
Al Downie
That's an amazing lamp, n4zou! Pinched from a physics lab somewhere?? Presumably the giant high-tension lead coming out of it is attached to electrodes in the saddle, and is part of some cruel anti-theft system?
Hooked up to my dynamo so no batteries are required. Cree XR-E power LED's with Fraen optics produce 400+ Lumen. See Martins site here for more information on building dynamo or battery powered LED headlights.
http://pilom.com/BicycleElectronics/...lectronics.htm