Small fixing clip for an LED light strip. Mount with M3x12 or M3x16 wood screw. Its very thin, so take care not to over-tighten.
Print with 100% infill, 1 wall thick. On edge, with support if necessary for the screw hole.
The 'pan' variants are for a flat-headded screw, the normal ones for countersunk.
The double sided ones need cleaning up. Depending on your slicer, they may print OK, but check first.
Best with 1 wall thick, and 100% infill, otherwise there is a chance your slicer will leave voids. Since this part is very thin, it needs to be printed to be as strong as practical. I used support to reduce the deformation of the screw hole, you may not need this if you have good cooling.