12v 6a generator

I don't know how well these work--but I've read some posts bemoaning the woes of our 6v systems and this could be a possible solution--

http://www.streetlowrider.com/store/index.php/cPath/25_69

 

The magneto is claimed to be a 6V/3W system, the link shows a 12V/6W system (not 6A!!!) So, the generator is twice as powerful as the magneto, but damages the wheel -- others have claimed that at high speed, these generators blow out light bulbs. So, it has some problems

 

So that would mean a .5 amp generator.
voltage X amps = watts, and watts divided by voltage = amps.

Myron