Plastic T2 100W Lampholder BC / B22 Cordgrip Entry, Shade Compatible
Height - 64mm
Width - 36mm
Here is probably the most common Lampholder used in this country. The John Smith of the Lampholder world, it simply hangs on the end of a wire in the centre of a room. It has a simple cordgrip mechanism to stop it coming off the cable. The skirt unscrews so a shade can be attached. It has a metal insert and takes up to 100 watts.
Before starting any electrical work, always switch off at the mains. If in doubt consult a competent electrician