But if you also upgrade to a good quality H4 headlamp conversion at the same time, you're going to rival and best some new car headlight systems on your fifty plus year old car
There has not been a good H4 option to replace the 4002 lamps, at least that was so for a while.
The 4001 high beam only lamps have some options, but they are not H4 - which is a hi/low lamp, but IIRC H3.
Dan Stern I'm sure has some suggestions.
