This lamp shade can be used either standing for table lamps or upside down for ceiling lamps (using the adapter part) with a standard screw-type E14 lamp socket. The wall thickness is only 0.6mm in order to make the shade as trasparent as possible. It works great with candle-shaped E14 bulbs. It can even be used with old 40W incandescent light bulbs if you still have some, as there is enough free airflow between the bulb and the shade to prevent overheating.

PLA recommended. Layer height 0.3mm, infill 10%. No supports.

https://youtu.be/UamJEg9ZvNg