Complaint / review text:
You can replace the sockets with ceramic, order them from a lamp supply company. I use all vintage ceiling fans, a 1920's Diehl, a 1940's Hunter reverse air, and a 1980's Hunter. The Diehl had its own light kit (single bulb and socket designated for up to 300 watts, A21 shape). The 1940's Hunter was redone for a modern light kit, but I had remove the candelabra sockets in the modern kit and replace them with full size so I could use the bulbs that I wanted, same for the 1980's Hunter. As a side note, I cannot use CFL on the 1940's and/or 20's fan because of the choke/transformer style speed control.
As for the problems with the light kits, it's a well documented issue that CFL and some solid state controls do not mix, and flickering is one of the problems. Experiment with one incandescent bulb in one of the sockets, and it should fix some of the issues. As far as current limiter is concerned, let's just say that it's "optional" for lack of better terminology. Just don't go higher than 60 watts per bulb, and the solid state wall control will be happy. The BEST solution is to run two wires, one for the fan, and one for the light, and control the fan from switches on the wall.