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2. Havells Sylvania - Wikipedia

   en.wikipedia.org/wiki/Havells_Sylvania

   1964 — Deluxe Mercury Lamp; Following Sylvania's invention of the red-emitting phosphor for colour television screens, a spinoff application created the modern deluxe colour mercury lamp. [7] 1966 — MetalArc; Invention of the sodium-scandium lamp chemistry which continues to set the standard for metal halide lighting all over the world. [8]

3. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   A metal-halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides [1] [2] (compounds of metals with bromine or iodine). It is a type of high-intensity discharge (HID) gas discharge lamp . [ 1 ]

4. NEMA wattage label - Wikipedia

   en.wikipedia.org/wiki/NEMA_wattage_label

   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 lamp (PSMH). Green is also used on HPS units in Canada.

5. Standard illuminant - Wikipedia

   en.wikipedia.org/wiki/Standard_illuminant

   Standard high pressure sodium lamp HP2 0.4778: 0.4158 2506 Color-enhanced high-pressure sodium lamp HP3 0.4302: 0.4075 3144 High pressure metal halide lamp HP4 0.3812: 0.3797 4002 High pressure metal halide lamp HP5 0.3776: 0.3713 4039 High pressure metal halide lamp LED-B1 0.4560: 0.4078 2733 phosphor-converted blue LED-B2 0.4357: 0.4012 2998

6. Sylvania Electric Products - Wikipedia

   en.wikipedia.org/wiki/Sylvania_Electric_Products

   The Hygrade Sylvania Corporation was formed when NILCO, Sylvania and Hygrade Lamp Company merged into one company in 1931. In 1939, Hygrade Sylvania started preliminary research on fluorescent technology, and later that year, demonstrated the first linear, or tubular, fluorescent lamp. It was featured at the 1939 New York World's Fair. [1]

7. Bi-pin lamp base - Wikipedia

   en.wikipedia.org/wiki/Bi-pin_lamp_base

   A metal halide lamp with a bipin cap. A bipin or bi-pin (sometimes referred to as two-pin, bipin cap or bipin socket) is a type of lamp fitting.They are included in the IEC standard "IEC 60061 Lamp caps and holders together with gauges for the control of interchangeability and safety".