Do these plug into the factory wiring harness or do I need adapters?

These use OEM mounting points, but wiring connector compatibility is not specified. Test-fit before committing—you may need a simple rewire or adapter depending on your existing harness.

Are the bulbs included, or do I need to source them separately?

Bulbs are not included with this assembly. You'll need to confirm the bulb size and type for your year and install them before mounting.

Can I install these myself with basic hand tools?

Yes. They bolt into factory positions, so you're looking at straightforward removal and swap-in. Have your bulbs ready and a socket set handy.