Do I need a bulb, or does this come with one?

This assembly does not include a bulb — you'll need to source the correct bulb type separately and install it into the housing. Check your owner's manual or the original bulb for the correct specification.

Will this bolt directly to my truck, or do I need brackets or adapters?

This is designed for direct installation at the factory mounting points. Test-fit before final assembly to confirm alignment with your specific truck's frame and wiring harness.

What if the headlight doesn't work after I install it?

Check that the bulb is seated fully in the housing and that the wiring connector is completely engaged. If the issue persists, the bulb itself may be defective — swap in a known-good bulb to rule that out first.