if you're running your high beam while riding and it goes out, are you still able to use your low beam? and vice versa? if your low beam goes out while riding, are you not able to still use your high? is it different if you're running a halogen vs. an LED vs. an HID bulb? i have an HID kit on mine, and before i hooked up my projector, there was no difference in light output between switching from high to low so i don't even know if mine has a true low/high function.