I used self adhesive strip LED lighting on the inside of my e5+ frame and needed to diffuse the light.
The clips are offset to clear the Y wheels so they don't get in the way and sit above the bed height, to avoid collision.
I would advise 3 clips for the front and back and two each for the sides. You can print the clips with a raft if you're having issues with adhesion on the small parts.
No screws are required. I used this t-nut model - https://www.thingiverse.com/thing:3050607 - as the basis for the mount.
The clips should go over the top of an LED strip, helping to support it on the frame, but there is also a channel to run it through, if needed.
The diffusers are just a couple of layers thick. I advise printing in white or other translucent colour.

Creality

Ender 5

No

No

0.2

Doesn't matter