Pack Of 10 Multi Base Halogen Mini Bi-Pin w/ 6" wires Socket up to 75 Watts Ceramic Body with Mica Covers for Light Bulbs with Base GU5.3, G4, MR11, MR16 Accommodates G4, G6.35, GY6.35,GX5.3, MR16, GZ4,MR11 base, compatible with LED, CFL and halogen bulbs Heat resistant ceramic insulating base and nylon braided wire Pre-stripped wire ends and soldering might be applied for permanent installation Two holes for bulb contact pins, and the other two holes for affixing screw Dimension : 17 mm Dia x 10 mm H / 150 mm Wire