FLSUN SR light switch

simple top plate to hold a small rocker switch, typically for light.
Those switches are extremely common, the dimension on the part inserted of the switch are roughly 13.5*8mm, the standard is KCD11 (I think).

For convenience during print, I cut the model in 2. Just print those 2 separately with the big flat surface on the bed, then put them together (you don't even have to bond them, the screws are enough).
you should be able to use the stock screws (I did that).

you can use my lights to go with it! https://www.thingiverse.com/thing:5241915