A larger gallery for glass light shades. The diameter of the fitter is 78mm and the three screws will hold shades with necks between 6 to 7.5cm diameter. A robust light fitting made from brass with three brass screws. Note: this size gallery is less common than the 59mm. The central hole is large enough to take what are called 33mm E26 or E27 screw bulbholders with shade rings. See measuring tips below:
1. To measure the neck of the shade, measure the top of the neck flat, then the minimum size of the neck where it curves in.
2. Not all E26 and E27 bulbholders measure 33mm across. Please check yours first.

Confused?! Just message, happy to answer any questions.