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  2. Landscape lighting - Wikipedia

    en.wikipedia.org/wiki/Landscape_lighting

    Light fixtures - fixed location - line voltage (120 V U.S. or 240 V Europe) and low voltage (12 V U.S.) [2] Post mount - column mount; Address light; Wall mount; Ceiling mount - hanging fixture; Security lights; Tree lights - up and down lights; In-grade fixtures- uplights buried in-ground - top flush with surface; Adjustable aim "bullet" - uplight

  3. Electric eye - Wikipedia

    en.wikipedia.org/wiki/Electric_eye

    Electric eye for a garage door opener. An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam.

  4. Photoelectric sensor - Wikipedia

    en.wikipedia.org/wiki/Photoelectric_sensor

    Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in ...

  5. Lighting - Wikipedia

    en.wikipedia.org/wiki/Lighting

    It is typically a floor lamp but may be wall-mounted like a sconce. Further interior light fixtures include chandeliers, pendant lights, ceiling fans with lights, close-to-ceiling or flush lights, and various types of lamps [15] The portable or table lamp is probably the most common fixture, found in many homes and offices. The standard lamp ...

  6. Electric light - Wikipedia

    en.wikipedia.org/wiki/Electric_light

    An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting . Lamps usually have a base made of ceramic , metal, glass, or plastic which secures the lamp in the socket of a light fixture , which is often called a "lamp" as well.

  7. Electro-optical sensor - Wikipedia

    en.wikipedia.org/wiki/Electro-optical_sensor

    There are many different kinds of optical sensors, the most common types are: [2] Photoconductive devices convert a change of incident light into a change of resistance. Photovoltaics, commonly known as solar cells, convert an amount of incident light into an output voltage. Photodiodes convert an amount of incident light into an output current.