A brass lamp holder is the socket in an electric light into which the bulb fits, made with a brass outer body that houses the electrical contacts. Antique and vintage brass holders may have a bayonet or Edison screw fitting and sometimes include a built-in switch operated by a key or push button.
Brass holders were standard in the early decades of domestic electric lighting, from the late nineteenth century until the mid-twentieth century, when Bakelite and later plastic holders became more common. Many early examples carry the names of manufacturers such as GEC or of patent designs, and their small threaded bodies were made to accept shade rings and gallery carriers for glass shades. Brass holders remain popular when restoring or converting antique lamps and lanterns because they match the metalwork and look appropriate to the period. Old holders, however, may lack an earth connection or have perished insulation, so they should be checked carefully. Modern brass holders made to current standards, including earthed versions, are widely available, and any rewiring should be carried out and tested by a qualified electrician before the light is used.
