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2. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   The arc-tube operates at anywhere from 5–50 atm or more [8] (70–700 psi or 500–5000 kPa) and 1000–3000 °C. [9] Like all other gas-discharge lamps, metal-halide lamps have negative resistance (with the rare exception of self-ballasted lamps with a filament), and so require a ballast to provide proper starting and operating voltages ...

3. NEMA wattage label - Wikipedia

   en.wikipedia.org/wiki/NEMA_wattage_label

   Additionally, various colors are used to identify what type of lamp the fixture uses. A yellow sticker indicates the lamp is a sodium vapor lamp (HPS/LPS). A blue sticker indicates the lamp is mercury vapor (MV). A red sticker indicates the lamp is metal halide (MH). A sticker that is half-red and half-white indicates a pulse start metal halide ...

4. Grip (occupation) - Wikipedia

   en.wikipedia.org/wiki/Grip_(occupation)

   Offset Arm – A stand-mounted lighting fixture that can be extended off center over a wall or other object. Redhead – Refers to 1,000 watt open-faced light fixtures. Sandbag – Heavy cloth bags filled with sand that are used to secure equipment on set. Available in a variety of weights, sandbags commonly used by production companies are ...

5. Cabo Sardão Lighthouse - Wikipedia

   en.wikipedia.org/wiki/Cabo_Sardão_Lighthouse

   The lighthouse was electrified in 1950, with the installation of generators, at which time the light source was changed from petroleum gas to a 3000 watt bulb. It was connected to the public distribution network in 1984. The power of the light source was reduced and a 1000-watt bulb was installed. [3]

6. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   Circular and U-shaped lamps were devised to reduce the length of fluorescent light fixtures. The first fluorescent light bulb and fixture were displayed to the general public at the 1939 New York World's Fair. The spiral CFL was invented in 1976 by Edward E. Hammer, an engineer with General Electric, [7] in response to the 1973 oil crisis. [8]

7. Category:Light fixtures - Wikipedia

   en.wikipedia.org/wiki/Category:Light_fixtures

   A light fixture or luminaire is a technical and professional term for the electrical fixtures used to hold a lamp—a light bulb—the light source. Wikimedia Commons has media related to Lighting fixtures .