Creative Hobbies 7070 Two Circuit Turn Knob Lampholder Sockets For Controling Two Lamp Sockets, Standard Base, Gold Metal Shell Incandescent Replacement Lampholders, Pack of 3 Sockets Creative Hobbies 7070 Two Circuit Turn Knob Lampholder For Controlling Two Sockets, Standard Base, Gold Metal Shell Incandescent Replacement Lampholders, Pack of 3 Sockets Medium Base Fits standard household bulbs and is great for repairing lamps. 2 Circuit Sockets can be used to operate 2 sockets independently or together. Removable turn knob style in bright gold finish with 1/8 IP female threaded base caps fir standard lamp pipes. U.L. and C.S.A. listed