Orbitec 78 mm Lighting Socket Screw - 5200/SQ70/SIV, Base: R7s, Material: Steatite, Wiring Points: Either Side, Length: 102 mm, Width: 42.5 mm, Current Rating: 4 A, Voltage Rating: 250 V.
Orbitec Halogen Lamp Holder Screw - H 4653, Material: Steatite, Number of Pins: 2, Length: 9 mm, Width: 17 mm, Current Rating: 4 A, Voltage Rating: 24 V.