What's what on an H4?

[Warthog]

I have finally received my KMX 200 headlamp, and I now want to wire it up sot that I can undo the bullet connectors for the 35/35 unti and replace it with a wired bit for the 55/60 bulb.

I have wire.
I have bullet connectors.
I even have the plastic socket that attaches to the back of an H4 bulb, so I can connect it up.

However, I cannot do this as I do not know which of the 3 blades on the back of an H4 refers to the earth connection, the low beam filament or the high beam filament. I thought I could isolate the earth using a multimeter resistance test across two terminals at a time, but given there is one earth and two circuits: I obviously get continuity through any combination, so that was crap logic.

Any ideas?

Thanks.

[Lumiya]

Try HERE

(especially step 6)

Kymmy

[Warthog]

Step six it was!!

Thanks for that. I shall start a-crimping!