This porcelain threaded socket offers a quality solution for replacing a worn or broken socket or for creating a new light fixture. It includes a metal shade ring that is used to hold 2-1/4 in fitter glass in place and is compatible with standard base light bulbs. The socket measures 1-1/2 in from top to bottom. It is rated for 660 W maximum and 250 V. The socket comes with hardware necessary for installation.