The original model doesn't work because the distance from the wall is not enough. If you mount a piece of wood on the wall that may work. The second STL file makes it 20mm further from the wall. The desk mount for my Tertial Lamp from IKEA broke end needed to be replaced. What better place for the mount than on the wall?

I printed it in Silk PLA at .2 layer height
4 walls and 40% Infill (Gyroid)