In mum's house, in the lounge there's a pendant fitting that has three sort of goblet/vase-shaped metal cones which face upwards at the ends of three metal arms. The cones have frosted glass 'petals' in them. The bulb holders are small edison-screw fittings mounted somehow in the metal parts of the cones. I'm having to change bulbs in this unit very often; partly I think the problem is that although hot air from them can drift upwards, there's nowhere for cool air to flow into the base of each cone, so I think the bulbs get very hot and their life is shortened.
There's also clearly a problem with poor contacts somewhere in the SES bulb sockets, as quite often an apparently failed bulb will work again if it is turned a few degrees in its socket.
I could possibly take the whole unit apart, but there's litte point unless anyone knows of some place which stocks SES sockets with (presumably) various types of mount, so I might be able to find one sort that would fit the whole unit.
Or, just maybe some manufacturer has an adapter - perhaps very slightly larger than a normal SES bulb's thread, and with a spring of its own at the bottom where the blob contact on a normal SES blub is - that can be screwed into an existing SES socket to produce an effective new socket an inch or so further out?
Does anyone know of SES sockets, or adapters like this? Or know of any way to make a poor contact SES socket reliable again?