3" across and 6½" tall. This lamp adapter has two light sockets. Turn the switch once to turn on the bottom light. (2" candelabra base socket.) Turn the switch again to turn off the bottom and turn on the top. (Standard light socket.) Turn the switch a third time to turn on the top and the bottom lights at the same time.
Zinc Mason Jar Lamp Adapter. Attractively packaged. This adapter will fit any standard mason jar and convert them to lamps. Standard light bulb and lamp shade not included. Our electrical items have a small on/off switch on the cord.