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  2. Electrical ballast - Wikipedia

    en.wikipedia.org/wiki/Electrical_ballast

    An American electronic instant start ballast for powering a variety of American T8 fluorescent lamps. Variety of ballasts for fluorescent and other discharge lamps. An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit.

  3. T5 retrofit conversion - Wikipedia

    en.wikipedia.org/wiki/T5_retrofit_conversion

    T5 retrofit conversion can maintain existing lighting levels with the higher efficiency of the T5 lamp. However, with kits that operates the lamp on the existing magnetic ballast, the efficiency drops and the lamp life is considerably shortened, as T5 lamps aren't designed to be operated on mains frequency but only on high frequency.

  4. LED tube - Wikipedia

    en.wikipedia.org/wiki/LED_tube

    The original supplier of the fixture and the coupling device will no longer be responsible if LED tubes with an electronic ballast are used. Therefore, it is worth considering whether electronic ballasts should be scrapped when LED tubes are fitted in old fixtures, particularly in extensive switchover projects. The term retro-fit is also used ...

  5. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    This section lists the more common tube ratings for general lighting. Many more tube ratings exist, often country-specific. The Nominal Length may not exactly match any measured dimension of the tube. For some tube sizes, the nominal length (in feet) is the required spacing between centers of the lighting fixtures to create a continuous run, so ...

  6. LED lamp - Wikipedia

    en.wikipedia.org/wiki/LED_lamp

    A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

  7. Light fixture - Wikipedia

    en.wikipedia.org/wiki/Light_fixture

    A light fixture (US English), light fitting (UK English), or luminaire is an electrical lighting device containing one or more light sources, such as lamps, and all the accessory components required for its operation to provide illumination to the environment. [1] All light fixtures have a fixture body and one or more lamps.

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