[E14 Candle Lampholder]
Adjustable Height 24mm Diameter Screw Terminal Candle Lampholder SES / E14 10mm Threaded Entry, Not Shade Compatible
Width - 23.5mm,
This lampholder is designed for chandeliers which have candle sleeves on the arms. The sleeve will fit over this lampholder if it has at least a 24mm internal diameter. There is some height adjustment to allow the lampholder to fit with the sleeve perfectly.
If in doubt consult a qualified electrician.