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  2. Track lighting - Wikipedia

    en.wikipedia.org/wiki/Track_lighting

    Track lighting is a method of lighting where light fixtures are attached anywhere on a continuous track device which contains electrical conductors. [1] [2] This is in contrast to directly routing electrical wiring to individual light positions. Tracks can either be mounted to ceilings or walls, lengthwise down beams, or across rafters or joists.

  3. LED strip light - Wikipedia

    en.wikipedia.org/wiki/LED_strip_light

    An LED strip, tape, or ribbon light is a flexible circuit board populated by surface-mount light-emitting diodes (SMD LEDs) and other components that usually comes with an adhesive backing. Traditionally, strip lights had been used solely in accent lighting, backlighting, task lighting, and decorative lighting applications, such as cove lighting .

  4. Transformer - Wikipedia

    en.wikipedia.org/wiki/Transformer

    In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.A varying current in any coil of the transformer produces a varying magnetic flux in the transformer's core, which induces a varying electromotive force (EMF) across any other coils wound around the same core.

  5. Tap changer - Wikipedia

    en.wikipedia.org/wiki/Tap_changer

    However, a transformer may include a tap changer on each winding if there are advantages to do so. For example, in power distribution networks, a large step-down transformer may have an off-load tap changer on the primary winding and an on load automatic tap changer on the secondary winding or windings. The high voltage tap is set to match long ...

  6. Distribution transformer - Wikipedia

    en.wikipedia.org/wiki/Distribution_transformer

    A self-protected transformer consists of an internal fuse and surge arrester; other transformers have these components mounted separately outside the tank. [12] Pole-mounted transformers may have lugs allowing direct mounting to a pole or may be mounted on cross-arms bolted to the pole.

  7. Electrical ballast - Wikipedia

    en.wikipedia.org/wiki/Electrical_ballast

    It can be incorporated into an existing fluorescent light fixture or mounted remotely outside of it. When power is lost, the ballast will illuminate one or more lamps in the fixture at a reduced output for a minimum of 90 minutes (as required by code). These can be used as an alternative to egress lighting powered by a back-up electrical generator.