No new bulbs.
The stock lights (bulbs PLUS socket) just twist into the existing holes/flanges on the new taillights.
The OEM come out with that one screw, there are clips up on top, that are friction fit. Just giggle the assembly a bit. The new ones MAY NO fit properly! My Gen 3 did not. Get some dbl sided tape before you start. I had to use 2, 2" pieces to make mine fit tight.
Good luck!
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