Will this bolt straight onto my truck without modification?

Yes. This unit mounts at factory attachment points — no drilling, cutting, or bracket fabrication needed. Test-fit before final installation to confirm alignment with your tailgate.

Do I need to purchase bulbs separately, or are they included?

The assembly ships complete with LED elements installed. No additional bulbs to buy.

What's the difference between this and the stock brake light?

LED produces brighter light output, responds faster when you hit the brakes, and the bulbs last significantly longer than traditional incandescent. The 3D styling is purely aesthetic — the functional upgrade is the LED technology itself.