Lowedog, The Baja Designs guy said at first they were making the kits for the WR450 with AC power to the headlight with the 70/75watt bulb. He explained to me that they had to stop because of complaints that it was frying the regulator. It became such a problem that they had to start running the headlight (along with everything else) off the battery (DC). Obviously, a lower wattage bulb (35/35w) would have to be used. My question to you is: Have you experienced any regulator or stator problems ????? I doubt it as our bike was designed to run the headlight with AC power. It shouldn't be a problem.