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  2. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.

  3. 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 ...

  4. Neon-sign transformer - Wikipedia

    en.wikipedia.org/wiki/Neon-sign_transformer

    An iron cored neon-sign transformer, with a 9-volt battery for scale. A neon-sign transformer (NST) is a transformer made for the purpose of powering a neon sign.They convert mains voltage in the range 120-347 V up to high voltages, in the range of 2 to 15 kV.

  5. 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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  7. Exeed Sterra ET - Wikipedia

    en.wikipedia.org/wiki/Exeed_Sterra_ET

    The front of the Sterra ET has grille-less design with a lower air intake with active shutters, with light bar style DRLs and a split-headlight design. The trapezoid-shaped lighting modules on the corners consist of LED headlights at the top and fog lights at the bottom, between which is an optional array of 180 LEDs forming an LED display marketed as the 'light language system', which can be ...