Do these need bulbs, or are they included?

The housings ship without bulbs — you'll need to source bulbs for your projector type separately. The LED strip accent is pre-installed.

Will these fit without any modification to my vehicle?

These mount at factory connection points with no cutting or drilling required. Bolt-on fitment.

What's the difference between projector and reflector headlights?

Projectors use a lens to focus the beam into a tighter, more controlled pattern — better visibility and less scattered light. Reflectors bounce light off curved surfaces, which spreads it wider. Projectors are the Euro standard and they're noticeably sharper on dark roads.