Will these mount to my factory headlight brackets?

Yes—these mount at factory points with no drilling or custom fabrication needed. Install follows the same fastener pattern as your OEM headlights.

Do I need to buy a bulb kit or ballast separately?

LED internals are built into the housing. You're installing the complete light assembly, not swapping bulbs into an existing frame.

What if one doesn't fit or I'm not happy with the look?

Test-fit before you commit to fasteners—take photos under different lighting to confirm the chrome finish matches your expectations and that both sides sit flush with your fender line.