I couldn't find any satisfying E12 light bulb socket so I decided to make this adapter for an easy to find (at least around here) candelabra socket. It has a 28mm base and comes with a matching nut.
To assemble, remove the metal part from the original socket. Insert your power cord into the printed adapter, screw the wires on the socket's terminals, insert the socket in the adapter and secure it in place with a 25mm M3 screw.
Print the parts in their original orientation, without support.
The author remixed this model.
Adapter for commonly available candelabra E12 light bulb sockets.