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  2. Leviton - Wikipedia

    en.wikipedia.org/wiki/Leviton

    Leviton Manufacturing Company, Inc. is an American manufacturer of electrical wiring equipment in North America. The company produces electrical outlets including GFCI and USB charging devices , network infrastructure, lighting control systems , load centers and circuit breakers , EV charging stations, and utility submetering .

  3. Luminous intensity - Wikipedia

    en.wikipedia.org/wiki/Luminous_intensity

    One candlepower was the light produced by a pure spermaceti candle weighing one sixth of a pound and burning at a rate of 120 grains per hour. Germany, Austria, and Scandinavia used the Hefnerkerze, a unit based on the output of a Hefner lamp. [4] In 1881, Jules Violle proposed the Violle as a unit of luminous intensity, and it was notable as ...

  4. Lighting power density - Wikipedia

    en.wikipedia.org/wiki/Lighting_power_density

    However, in the lighting industry it is often associated with the lighting power allowance (LPA) permitted by the building energy code in question. The Oregon Department of Energy defines lighting power density as "The maximum allowable lighting density permitted by the code. It is expressed in watts per square foot for a given occupancy/space ...

  5. Xenon arc lamp - Wikipedia

    en.wikipedia.org/wiki/Xenon_arc_lamp

    15 kW xenon short-arc lamp used in IMAX projectors High-speed, slow-motion video of a xenon flashtube recorded at a speed of 44,025 frames per second.. A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.

  6. Orders of magnitude (power) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(power)

    tech: maximum power output of one GE90 jet engine as installed on the Boeing 777: 10 8: 1.04 × 10 8 W tech: power producing capacity of the Niagara Power Plant, the first electrical power plant in history 1.4 × 10 8 W tech: average power consumption of a Boeing 747 passenger aircraft 1.9 × 10 8 W tech: peak power output of a Nimitz-class ...

  7. Cooper Wiring Devices - Wikipedia

    en.wikipedia.org/wiki/Cooper_Wiring_Devices

    The company is the successor to both Arrow-Hart & Hegeman and Eagle Electric, both of which Cooper Industries had acquired. The Arrow-Hart brand is still used by Cooper Wiring Devices for some of their commercial products. Cooper Wiring's key competitors today include Hubbell, Leviton, Legrand and Lutron Electronics Company.

  8. Joel Spira (businessman) - Wikipedia

    en.wikipedia.org/wiki/Joel_Spira_(businessman)

    Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.

  9. Limelight - Wikipedia

    en.wikipedia.org/wiki/Lime_light

    Limelight (also known as Drummond light or calcium light) [1] is a non-electric type of stage lighting that was once used in theatres and music halls. An intense illumination is created when a flame fed by oxygen and hydrogen is directed at a cylinder of quicklime ( calcium oxide ), [ 2 ] due to a combination of incandescence and ...