lámpatart

lámpatart is the component of a lighting fixture that secures a lamp bulb and provides the electrical connections needed for operation. It serves as both mechanical support and electrical contact, and it isolates live parts from users and surrounding materials. The term can refer to a variety of forms used around the world.

Common types include Edison screw sockets (European E27 and smaller E14, and the North American E26 or E27), bayonet mounts (such as B22d), and several two-pin or plug-in bases used for halogen or LED modules (for example GU10, GU5.3, G4). Wedge and pin-based sockets are used in some specialty lamps and linear lighting. Some lamp holders integrate a switch or a cord grip.

Construction materials range from ceramic or bakelite to modern high-temperature plastics, with metal contacts made of brass or phosphor bronze. Sockets are rated for a nominal voltage (commonly 230 V in Europe and 120 V in North America) and a maximum wattage or current per bulb. Compatibility depends on the base type and the fixture’s electrical design. LED bulbs can usually be used with standard sockets if the base matches and the fixture supports the bulb’s heat and driver requirements; dimming may vary by model.

Installation and maintenance involve connecting the conductors to the socket terminals, securing the unit to the lamp body, and ensuring insulation and strain relief. Worn or damaged holders should be replaced to prevent arcing or contact failure.

See also: lampholder, light fixture, bulb.