This is a new housing for Ikea Smart light switches. After removing the back and front covers from the Ikea switch, you can put the remaining part on top of the bottom 3D printed part. You must ensure that the screw holes face the same way. Use the original screw to fasten the lower part. Also, make sure to attach the magnet to the battery, as this will be used to mount the switch later. The upper part can now be placed at the top. The fittings must fit neatly into the holes on the Ikea switch. If you hear a "click", you're done. Glue a 5 cent pice (or any other metal that fits) into the mounting holes. The switch can now be mounted neatly. I used tape to attach the mount to the surface. The product is printed with PLA.