Will this mount to the factory cab light holes on my truck?

Yes. This light is designed for direct fit into factory locations — no drilling or relocating. Just remove the old housing and swap in the new one.

Does this come with the bulb already installed?

The light assembly ships ready to install. Confirm bulb type matches your truck's existing connector before finalizing the swap.

Will the white LED work with my factory wiring?

This uses white LED technology, which draws less power than incandescent bulbs. Your factory wiring will handle it — no relay or rewire needed.