Well machined and using an insert with its own earth terminal. This lampholder has a cordgrip mechanism in built if wired correctly which can save time when rewiring a lamp. All wires can be stripped and prepared and wired to the insert (secured to Cord Restraint) whilst away from the base. Fits a 30mm shade hole with lock ring included. Specifications: Type: BC / B22 Thread: 1/2" Height: 59mm Width: 30mm Overall Push Bar Width: 42mm
