Lamp holder hole is 42mm. It's designed for common e27 bulb holder.
3D view: https://a360.co/3m4HRRu
Use glue to join all parts.
Dimensions:
width about 318mm
height about 200 mm
1st_layer.stl | 2.3MB | |
2nd_layer.stl | 5.1MB | |
3rd_layer.stl | 6.9MB | |
4th_layer.stl | 3.3MB | |
Base.stl | 4.7MB |