Do these mount at the factory cab light locations?

Yes, they mount at factory rocker or cab-mounted points — no drilling or bracket fabrication needed. Test-fit before final fastening to confirm alignment with your specific truck.

Will I need to run new wiring or can I tap into existing cab power?

These are designed for DIY installation with basic hand tools and wiring skills. If your truck has factory cab lights, you can often reuse existing wiring — verify polarity before connecting. If it doesn't, plan for a new run from a battery or switched 12V source.

Do these come with bulbs installed?

LED bulbs are included and pre-installed in the housings. You're ready to mount and wire.