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  2. 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 .

  3. High-mast lighting - Wikipedia

    en.wikipedia.org/wiki/High-mast_lighting

    The pole that the lighting is mounted on is generally at least 30 m (98 ft) tall (under this height it is referred to as conventional lighting system), [1] while the lighting consists of a luminaire ring surrounding the pole with one or several independent lighting fixtures mounted around it. Most units have four, six or eight lights in the ...

  4. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    Several LED spots being reflected as continuous lighting strip. 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.

  5. LED lamp - Wikipedia

    en.wikipedia.org/wiki/LED_lamp

    In 2009 the Manapakkam, Chennai office of the Indian IT company, iGate, spent ₹3,700,000 (US$80,000) to light 57,000 sq ft (5,300 m 2) of office space with LEDs. The firm expected the new lighting to pay for itself within 5 years. [43] In 2009, Audi was the first manufacturer to offer a car that exclusively used LED lighting, the 2009 Audi R8 ...

  6. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    They will function as a standard 40 W lamp on full-power ballasts, but may not last as long. These lamps are typically rated to last for 12,000 hours on a residential-grade ballast and only 6000 hours on a commercial-grade one. T12 1.5, 38 4 32 F40T12/ESP Retrofit replacement for 4 ft T12 40 W T12 1.5, 38 4 34 F34T12 F40T12/ES Retrofit ...

  7. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    Lighting and general purpose receptacles are at 120 volts AC, with larger devices fed by three wire single-phase circuits at 240 volts. In commercial construction, three-phase circuits are often used. Common 3 phase configurations within a building are 208v/120 wye, 120/240 center tapped delta and 480v/277v wye. Lighting is usually fed by 277 V ...

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