This SES Threaded copper Lampholder is ideal if the heat from the lamp is a concern.
Use this lampholder with the copper ses shade rings to hold the lamp shade in place.
It is a metal construction with a high temperature internals.
There is a earth connection on the inside of this ses Threaded copper Lampholder and a locking screw on the 10mm thread in the base to stop the lampholder from turning when removing the lamp.
Height 59mm and the diameter is 28mm
Order shade rings separately.
As this is a metal lampholder, ensure you use a 3 core mains flex to provide an earth connection to this lampholder.