ALL TYC projector headlights use H1 bulbs, low AND high... never H3 or 9005.

The lights come with short pigtails that will plug into the cars stock connectors, no cutting or splicing needs to be done.

TYC headlights have OK output... much better than other "projector" headlights that use H3 bulbs, but they still suck compared to stock headlights.

Putting any different bulb in the lights would not be a good idea, the "focal point" of each bulb is different and you would be doing more harm than good.