heres what u do brother, get whatever ballast u want , plug into the hood, put the correct bulb in the hood , and rock n roll, cant believe Im explaining this to a 3 day old question to an auto body specialist, mechanic, fabricator, machinist, that knows it all asking about a fuckin conversion for a E39 light socket....all good , lets all hold his hand to walk him across the street, wait....look both ways before crossing, gotta watch for traffic first so we dont get run over, and pin a note on his shirt pocket so the principal knows he rides the short bus, and get him safely to school....cmon guys, how much time are yall gonna spend fallin for this needy for attention fucker thats 2 faced as hell and cant count on to have ur back in the long run... ok bell rings , and mmmmmkkkkayyy , welcome to Elementary School, My name is Oldy ~ Hi Oldyyyy