A lamp cross bar is a metal bar used in the assembly of certain types of lighting fixtures, such as chandeliers or multi-light pendant lights. The cross bar is typically installed between two or more lamp sockets, and provides a means of securely mounting the sockets and the lamps they hold. The cross bar may also have electrical wiring connected to it, which is used to supply power to the lamps. Lamp cross bars are typically made from metal, such as brass or steel, and come in a variety of lengths and finishes to match the style of the fixture and the room décor. The use of a lamp cross bar helps to ensure the stability and reliability of the fixture, and helps to distribute the weight of the lamps evenly, which is important for the safe and proper operation of the fixture.