Free 

The holder is made for a light blub socket with the following dimensions:
5.75 cm tall and 4 cm in diameter.
And the hole for the wire is roughly 0.6-7 cm in diameter.
The base can be printed upside down with no support but add brim to enable good plate adhesion.
The lampshade must be printed with no bottom in vasemode !
Check the print file for the lampshade to see how I printed it.
Names are used only to indicate the source of a result. Polyzon is not affiliated with the listed sites.