So I'm looking at buying a headlight conversion to put bulbs into.
This one specifically.
For 7" x 6" Black Housing SEALED Beam Conversion Headlights with Projector | eBay

But I want to slap some Bi-Xenon HIDs in them.

Xeno AC 35W HID Conversion Kit H4 H7 H11 H13 9003 9005 9006 6K 5K Hi Lo Bi Xenon | eBay

I know little about HID lighting and am seeing around some cars need Relays?
First off though, I have no clue what bulb will fit in that. I messaged the eBay seller and I'm waiting for a response.
My real question is, am I going to have to cut the pigtail off the factory light harness and wire that into the HID Ballast?
I can't seem to find anything about the conversion here and if anyone has done it before I would love to hear how.
I appreciate it.