Lighting Fixtures and Lamp Sockets

Lighting fixtures and lamp sockets produce artificial light in industrial areas or workspaces, and mechanically hold and electrically connect lamp bulbs to wiring. Light fixture types include: ceiling fixtures, chandeliers, desk lamps, enclosure lights, flood lights, floor lamps, fluorescent lights, landscape lights, pendants, piano lamps, recessed lights, sconce fixtures, table lamps, torchieres, track lights, wall fixtures, and sockets or bare fixtures. Chandeliers are hanging, ceiling-mounted lighting fixtures and lamp sockets with multiple arms or lights. Desk lamps and table lamps are both used for task lighting. Enclosure lights are used to provide illumination within enclosures. Flood lights are used to light a location or object to a luminance that is considerably greater than its surroundings. Floor lamps or sticks are standing lamps used for general-purpose lighting. Piano lamps are tall, adjustable-height floor lamps. Torchieres are a type of standing lamp with a single, upward-facing glass shade and a three-way mogul bulb. Pendants or suspended luminaries hang from the ceiling, or from a cable or track system, by supports. Recessed lights include down lights and fluorescent troffers. Track lights mount on the ceiling and consist of metal rods and movable light fixtures that snap into place. Sconce fixtures are wall-mounted lighting fixtures. Lamp sockets are bare fixtures that provide an electrical connection and holder for a lamp or bulb, but do not include a shade, lens, or enclosure. 

Lighting fixtures and lamp sockets vary in terms of lamp type, performance, applications, and features. Most products are designed for fluorescent, halogen, incandescent, light-emitting diode (LED), mercury, metal halide, sodium, or xenon lamps. Light fixture voltage (V) and light fixture wattage (W) are standard performance specifications for most products. High intensity discharge (HID) lamps such as metal halide lamps may carry additional specifications such as spectral distribution, rated average life, lamp power, initial lumens, color rendering index, and color temperature. Halogen light fixtures range from 10 W to 1000 W and LED light fixtures come in a variety of shapes and sizes. Some lighting fixtures and lamp sockets are designed for aerospace, automotive, industrial, marine, or outdoor applications. Others are used in residential, security, theatrical, or photography applications. Specialized lighting fixtures and lamp sockets for scientific, medical or dental applications are also available. Common features for lighting fixtures and lamp sockets include ballasts, bulbs, battery power, solar power, dimmers, fans, light detection, and motion detection.

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