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Old 10-26-09, 07:25 AM
  #8  
cerewa
put our Heads Together
 
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Join Date: Jun 2003
Location: southeast pennsylvania
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Bikes: a mountain bike with a cargo box on the back and aero bars on the front. an old well-worn dahon folding bike

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The wattage rating isn't a good way to go about buying a kit.
Watts = Volts X Amps.
In terms of power, the controller is often the limiting factor. You don't want to exceed the rated amps or rated volts of the controller.
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