the stock OEM hid xenon use a D1S bulb.
the H9 bulb you describe can be seen here:
H9 - halogen light bulb lamp - donsbulbs - light bulbs lamps valve valves tube tubes
the stock 300C headlights that have the projector lens with halogen bulb use a 9006 bulb type.
please post pics of the bulb that came with the unit and we'll be able to tell you more.