BC / B22
10mm Threaded Entry
Shade Compatible (Lock Ring Not Included)
Width: 40mm, Height: 65mm
This combination does not exist.
Got a shade with a 40mm hole and want to fit a BC/B22 lampholder? Here's the answer! Continental style & size but with a British bayonet fitting. Fits a 40mm shade hole.
If in doubt consult an electrician