I have the cibie conversion lights with headlight relays and some sylvania xtravisions. I drive 30 miles at 75mph down I70 for work at 3 in the morning in deer country. I like my headlights to work With my brights on i can light up damn near both sides of the interstate.
As far as H4, the best beam I've ever had came from a Cibie. Love their Z- beams. But I don't know if they are even in business anymore. yeah, you really need to run a relay like others have suggested.
