"A light fixture (US English), light fitting (UK English), or luminaire is an electrical device containing an electric lamp that provides illumination."
A knowledge of the different types of lighting fixtures, such as recessed, pendant, wall-mounted, floor lamps, track lighting, etc., and how to choose the appropriate fixture for a particular application.
Light sources: :.
Light output: :.
Chandeliers: A chandelier is a decorative light fixture that is usually mounted on ceilings or walls. It consists of multiple arms or branches that hold bulbs or candles.
Pendant lights: Pendant lights are lighting fixtures that hang from the ceiling on a chain or rod. They are usually used in kitchens, dining rooms or living rooms to provide focused illumination.
Flush mount lights: Flush mount lights are a type of ceiling light that is installed directly onto the ceiling without any hanging parts.
Sconces: Sconces are wall-mounted light fixtures that are used to accentuate a specific design element in a room or provide indirect lighting.
Track lighting: Track lighting consists of a track that is mounted on the ceiling or walls with several light fixtures attached on it. It is used to illuminate specific areas or objects.
Recessed lighting: Recessed lighting is a type of ceiling light that is installed inside an opening in the ceiling. It provides focused lighting without taking up any visual space.
Floor lamps: Floor lamps are portable lighting fixtures that are usually placed on the floor. They come in various sizes and designs and are used to provide task lighting or ambient lighting.
Table lamps: Table lamps are lighting fixtures that are placed on a table or desk. They are used for task lighting, reading or as a decorative element.
Cove lighting: Cove Lighting is indirect lighting that is installed along the ceiling lines, around the perimeter of a room. It provides a subtle, ambient glow and can help accentuate the ceiling or create an illusion of height.
Under-cabinet lighting: Under-cabinet lighting fixtures are installed underneath kitchen cabinets to provide task lighting for food preparation, cooking, and cleaning.
LED Strip lights: LED strip lights are long flexible strips of LED lights that can be easily installed for accent or task lighting.
Picture lights: Picture lights are miniature or recessed lights that are used to highlight artwork or decorative pieces.
Outdoor lighting: These include any lighting installed outside a building such as a floodlight, pathway lights, lanterns, etc.
Neon Lights: Neon Lights are bright, colorful lights that add a retro feel to a space. They are particularly good for restaurants, bars, and other social spaces.
"All light fixtures have a fixture body and one or more lamps."
"The lamps may be in sockets for easy replacement—or, in the case of some LED fixtures, hard-wired in place."
"Fixtures may also have a switch to control the light, either attached to the lamp body or attached to the power cable."
"Permanent light fixtures, such as dining room chandeliers, may have no switch on the fixture itself, but rely on a wall switch."
"Fixtures require an electrical connection to a power source, typically AC mains power, but some run on battery power for camping or emergency lights."
"Permanent lighting fixtures are directly wired."
"Movable lamps have a plug and cord that plugs into a wall socket."
"Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens), an outer shell or housing for lamp alignment and protection, an electrical ballast or power supply, and a shade to diffuse the light or direct it towards a workspace (e.g., a desk lamp)."
"A wide variety of special light fixtures are created for use in the automotive lighting industry, aerospace, marine and medicine sectors."
"Portable light fixtures are often called lamps, as in table lamp or desk lamp."
"In technical terminology, the lamp is the light source, which, in casual terminology, is called the light bulb."
"Both the International Electrotechnical Commission (IEC) and the Illuminating Engineering Society (IES) recommend the term luminaire for technical use."
"...in casual terminology, [the light source] is called the light bulb."
"A wide variety of special light fixtures are created for use in the automotive lighting industry..."
"A wide variety of special light fixtures are created for use in...marine sectors."
"The lamps may be in sockets for easy replacement—or, in the case of some LED fixtures, hard-wired in place."
"Some run on battery power for camping or emergency lights."
"Movable lamps have a plug and cord that plugs into a wall socket."
"Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens)..." Please note that there are multiple quotes in the paragraph that can answer some of the questions, so the selection of quotes for each question may vary.