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2. 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.

3. The Bay Lights - Wikipedia

   en.wikipedia.org/wiki/The_Bay_Lights

   A test conducted on January 24, 2013 Opening on March 6, 2013 A time lapse image of Market Street, with The Bay Lights in the background. The Bay Lights was a site-specific monumental light sculpture and generative art installation on the western span of the San Francisco–Oakland Bay Bridge, designed to commemorate the 75th anniversary of its opening.

4. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Two newer ranges, high-efficiency (HE) 14–35 W, and high-output (HO) 24–80 W, introduced in the 1990s. [2] Panasonic's range of FHL fluorescent tubes in 18W, 27W, and 36W varieties for the Japanese market. Circular fluorescent tubes. Thorn/General Electric 2D fluorescent lamps and other similar lamps from various manufacturers. T6 3 ⁄ 4: ...

5. Eastern span replacement of the San Francisco–Oakland Bay ...

   en.wikipedia.org/wiki/Eastern_span_replacement_of...

   The skyway and YBITS structures have custom lighting using 48,000 high-performance LEDs grouped in 1521 fixtures, most of which are mounted on 273 poles. [76] These fixtures were designed by Moffatt & Nichol [77] and built by Valmont Industries. Within a specific fixture the beam pattern of each LED is restricted by a masking structure.

6. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]

7. High-leg delta - Wikipedia

   en.wikipedia.org/wiki/High-leg_delta

   High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, red-leg, dog-leg delta) is a type of electrical service connection for three-phase electric power installations. It is used when both single and three-phase power is desired to be supplied from a three phase transformer (or transformer bank).