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  2. Lamp harp - Wikipedia

    en.wikipedia.org/wiki/Lamp_harp

    Lamp harp with fluorescent bulb. A lamp harp is the component of a lamp to which the lamp shade is attached. It typically comes in two separate parts, a saddle which is fastened under the lamp socket, and the harp itself which consist of a lightweight frame attached to the saddle at its lower end and extending upwards to a point above the bulb ...

  3. T5 retrofit conversion - Wikipedia

    en.wikipedia.org/wiki/T5_retrofit_conversion

    There are tree main types of conversion kits: Lamp-end type – Kits which include a replacement starter and two separate components to fit over each end of the T5 lamp. The lamp is then slotted into the existing fitting. Baton type – One piece kits which slot into the existing fitting and into which the T5 lamp is placed. [1] IP65 types ...

  4. Lightbulb socket - Wikipedia

    en.wikipedia.org/wiki/Lightbulb_socket

    A socket with a built-in switch is far more likely to fail in normal use as the switch parts wear out. Insulation failures are usually caused by impacts or by difficulty inserting or removing a lamp. Sockets used outdoors or in damp areas often suffer from corrosion which can cause the lamp to "stick" in the socket and attempts to change a lamp ...

  5. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location.A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room.

  6. Light fixture - Wikipedia

    en.wikipedia.org/wiki/Light_fixture

    Table lamp fixtures, standard lamp fixtures, and office task light luminaires. Balanced-arm lamp is a spot light with an adjustable arm such as anglepoise, RAMUN or Luxo L1. Gooseneck (fixture) Nightlight; Floor Lamp Torch lamp or torchières are floor lamps with an upward-facing shade. They provide general lighting to the rest of the room.

  7. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    A form of bus duct known as "plug-in bus" is used to distribute power down the length of a building; it is constructed to allow tap-off switches or motor controllers to be installed at designated places along the bus. The big advantage of this scheme is the ability to remove or add a branch circuit without removing voltage from the whole duct.

  8. Electrical ballast - Wikipedia

    en.wikipedia.org/wiki/Electrical_ballast

    This example is used for a tanning lamp. It requires a starter switch (below). A lamp starter, required with some inductor type ballasts. It connects the two ends of the lamp to preheat them for one second before lighting. An electrical ballast is a device that limits the current through an electrical load. These are most often used when a load ...

  9. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    did not confine switching to the hot conductor (the so-called Carter system prohibited as of 1923 places electrical loads across the common terminals of a three-way switch pair) permitted the use of in-line splices in walls without a junction box (however, this downside is offset by the strong nature of the soldered and taped junctions used at ...

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