Do these bolt straight to factory mounting points?

Yes. These mount at the factory fog light locations — no drilling or fabrication needed. You'll want to verify fitment before final fastening, but the hole pattern is designed for direct bolt-on installation.

What if I need to replace the bulb later?

H11 bulbs are standard and widely available. The socket is accessible from inside the fog light housing — swap takes minutes with the light unit removed.

Does the switch come with wiring harness?

The switch assembly is included, but connector type and wiring routing are not confirmed in the product specs. Have a basic wiring diagram for your vehicle model on hand before install so you can verify relay and ground points.