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  2. Havells Sylvania - Wikipedia

    en.wikipedia.org/wiki/Havells_Sylvania

    The world's first LED based retrofit designed to match the performance and size constraints of the popular GU10 50W tungsten halogen lamp, matching the 350-lumen output of the 50W halogen lamp. The lamps are produced at the first LED lamp manufacturing facility in Europe; earlier facilities have been in Asia.

  3. Multifaceted reflector - Wikipedia

    en.wikipedia.org/wiki/Multifaceted_reflector

    Left to right: MR16 with GU10 base, MR16 with GU5.3 base, MR11 with GU4 or GZ4 base Line drawing of an LED MR16 lamp, with a heatsink rather than a reflector. A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen as well as some LED and fluorescent lamps.

  4. List of automotive light bulb types - Wikipedia

    en.wikipedia.org/wiki/List_of_automotive_light...

    Replaceable Light Sources for Vehicle Headlamps; Bulb Type Trade Number Cap (Base) Filaments Nominal power @ 12.8v (High/Low beam where applicable) Comments Image HB1

  5. 3-way lamp - Wikipedia

    en.wikipedia.org/wiki/3-way_lamp

    A 3-way lamp, also known as a tri-light, is a lamp that uses a 3-way light bulb to produce three levels of light in a low-medium-high configuration. A 3-way lamp requires a 3-way bulb and socket, and a 3-way switch. In 3-way incandescent light bulbs, each of the filaments operates at full voltage. Lamp bulbs with dual carbon filaments were ...

  6. Luminous efficacy - Wikipedia

    en.wikipedia.org/wiki/Luminous_efficacy

    The former sense is sometimes called luminous efficacy of radiation, [4] and the latter luminous efficacy of a light source [5] or overall luminous efficacy. [ 6 ] [ 7 ] Not all wavelengths of light are equally visible, or equally effective at stimulating human vision, due to the spectral sensitivity of the human eye ; radiation in the infrared ...

  7. 12 Vintage Christmas Blow Molds Worth Serious Cash

    www.aol.com/12-vintage-christmas-blow-molds...

    4. 1950s Christmas Light Blow Mold Wood Sign. AmericanSalvageCo/Etsy. Price on Etsy: $1,650.