Do these bolt directly to my vehicle or do they need custom mounting?

They mount at factory headlight locations using existing attachment points — no drilling or reinforcement needed. Bolt them in place like OEM units.

Are the LED halos always on, or do they turn off when the headlights are off?

LED halo behavior depends on how you wire the accent rings. You can run them independently from the main headlight circuit so they stay on with parking lights, or tie them to main beam activation — your choice at install time.

What bulbs do I need to buy separately?

Bulb compatibility and type are not specified in the product details — confirm the socket type with our team or consult your vehicle's service manual to purchase the correct replacements.