The Magna Headlamp FAQ:

[atw0001]

I read the original post

Q: What bulbs does Mitsu use and where?

A:
Standard headlamp high beam - H4 55/60W
Standard headlamp low beam - H1 55W

So I went out and bought some H1 thinking they were low beam, get them home and I'm like WTF. So I reading the thread again and get to this.

Feel free to delete my post if I am wrong, but shouldn't those be the other way round?
i.e.

Standard headlamp high beam - H1 55W
Standard headlamp low beam - H4 55/60W

That's the point I felt like a ********

[Isilder]

If you have two bulbs on each side,

The high beam is served by two bulbs .
Low beam is served by one bulb


The low beam is run by the bulb with two powers, three contacts, 2 filaments .. the low beam filament is shrouded, the high beam is not.



H4 55W/60W for low beam and half of high beam

H1 55W for the other half of high beam