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  2. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared ...

  3. Recessed light - Wikipedia

    en.wikipedia.org/wiki/Recessed_light

    Recessed light. The interior of a Target store. A recessed light or downlight (also pot light in Canadian English, sometimes can light (for canister light) in American English) is a light fixture that is installed into a hollow opening in a ceiling. When installed it appears to have light shining from a hole in the ceiling, concentrating the ...

  4. Red light therapy is a treatment that may help skin, muscle tissue, and other parts of your body heal. It uses low levels of red light to target your skin and cells. It is thought to work by ...

  5. Chandelier - Wikipedia

    en.wikipedia.org/wiki/Chandelier

    A chandelier ( / ˌʃændəˈlɪər /) is an ornamental lighting device, typically with spreading branched supports for multiple lights, designed to be hung from the ceiling. [1] [2] Chandeliers are often ornate, and they were originally designed to hold candles, but now incandescent light bulbs are commonly used, [3] as well as fluorescent ...

  6. Thorn Lighting - Wikipedia

    en.wikipedia.org/wiki/Thorn_Lighting

    www .thornlighting .com. Thorn Lighting Ltd, a subsidiary of the Zumtobel Group, is a global supplier of both outdoor and indoor luminaires and integrated controls. Thorn was founded when Sir Jules Thorn started The Electric Lamp Service Company Ltd, in 1928, dealing in incandescent filament lamps. In 1936, renamed Thorn Electrical Industries ...

  7. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    G5 bi-pin. 2GX13 quad-pin. G10q quad-pin. Original 4–13 W miniature fluorescent range from 1950s or earlier. [1] Two newer ranges, high-efficiency (HE) 14–35 W, and high-output (HO) 24–80 W, introduced in the 1990s. [2] Panasonic's range of FHL fluorescent tubes in 18W, 27W, and 36W varieties for the Japanese market.

  8. Architectural lighting design - Wikipedia

    en.wikipedia.org/wiki/Architectural_lighting_design

    Architectural lighting design is a field of work or study that is concerned with the design of lighting systems within the built environment, both interior and exterior. It can include manipulation and design of both daylight and electric light or both, to serve human needs. [1] [2]

  9. Microsoft Exchange Server - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Exchange_Server

    Exchange Web Services (EWS), an alternative to the MAPI protocol, is a documented SOAP -based protocol introduced with Exchange Server 2007. Exchange Web Services is used by the latest version of Microsoft Entourage for Mac and Microsoft Outlook for Mac - since the release of Mac OS X Snow Leopard Mac computers running OS X include some support ...