Quote Originally Posted by hondabuilder
I imagine that your stator can stay pretty well within that range, you should be ok. best bet would be to hook a DMM to the output of the stator and measure voltage at idle, then rev the engine and see what it peaks at. Compare results with aforementioned range, and boom you have an answer. I would also guess that the voltage is most critical in the first few moments that the lights are on while the arc is being ignited, after that the ballast is probably pretty resilient.
Its not that easy. You have to remember that each bulb, even a very efficient one is going to pull over 4 amps each, and 6-8 amps on start up. Most stators can't support that kind of amperage and still keep around 12 volts. If you try to run it off the stator alone it probably won't ever strike. You really need a battery or something to stabilize the voltage or the ballast won't last long. They're pretty picky and need pretty stable voltage or they'll burn up, going up and down like it will off the stator alone will only cause problems. With a battery in the system you can certainly run them.