I see, I will try reversing my headlight to my original config and test it with the normal halogen bulb tonight, would it fix the problem do you think? Actually there is no wiring change, but instead the low beam light-bulb connection is now connected to a relay, then HID. When the switch is turned to low, it's only the low beam which is on, high beam is off -> this is normal. When I flash or turn high beam (with switch in low beam), the low beam is also on as normal, high beam is on -> this is normal. It is only when switch is turned to off, and I flash high beam -> both low and high beam are on -> this is interesting grounded-switch issue. Do you know what would have caused both low beam and high beam ground to close while high beam are turned on?