BC | B22 | Bayonet Cap Economy Bronze Plated 10mm Switched Lampholder 3264258
10mm threaded entry on base to fix to light fitting.
This lampholder comes with an external earth connection.
It also has a shade ring to hold a lamp shade with a 30mm diameter hole.
Diameter inc Shade ring: 32.5mm
This Lampholder must be wired with a 3-core flex that provides the correct earth connection.