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2. NEMA wattage label - Wikipedia

   en.wikipedia.org/wiki/NEMA_wattage_label

   "43" LED sticker—43 watts—Very common "46" LED sticker—46 watts—Very common; A label with a PS before the MH (e.g. 17 PSMH) on a MH sticker indicates that the fixture utilizes the newer pulse start technology, which uses different lamps than the older probe start technology. [1] [2] New Nema LED Sticker Uses For Led Street Light

3. 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.

4. Gas lighting - Wikipedia

   en.wikipedia.org/wiki/Gas_lighting

   The use of gas lights in Rembrandt Peale's Museum in Baltimore in 1816 was a great success. Baltimore was the first American city with gas street lights; Peale's Gas Light Company of Baltimore on 7 February 1817 lit its first street lamp at Market and Lemon Streets (currently Baltimore and Holliday Streets).

5. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.

6. From pressure washers to tool kits, these are the Lowe’s 4th ...

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7. Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Pressure_regulator

   A typical nominal regulated gauge pressure from a medical oxygen regulator is 3.4 bars (50 psi), for an absolute pressure of approximately 4.4 bar and a pressure ratio of about 4.4 without back pressure, so they will have choked flow in the metering orifices for a downstream (outlet) pressure of up to about 2.3 bar absolute.