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2. Lamp - Wikipedia

   en.wikipedia.org/wiki/Lamp

   Electric lamp, or light bulb, a replaceable component that produces light from electricity. Light fixture, or light fitting or luminaire, is an electrical device containing an electric lamp that provides illumination. Signal lamp, or Aldis lamp or Morse lamp, a semaphore system for optical communication. Safety lamp, any of several types of ...

3. Lumen (unit) - Wikipedia

   en.wikipedia.org/wiki/Lumen_(unit)

   Lumen (unit) - Wikipedia ... Lumen (unit)

4. Argand lamp - Wikipedia

   en.wikipedia.org/wiki/Argand_lamp

   The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas, brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequent trimming of the wick. In France, the lamp is called "Quinquet", after Antoine-Arnoult Quinquet, a ...

5. Lighting - Wikipedia

   en.wikipedia.org/wiki/Lighting

   Lighting - Wikipedia ... Lighting

6. Color rendering index - Wikipedia

   en.wikipedia.org/wiki/Color_rendering_index

   Color rendering index

7. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   Fluorescent lamp

8. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   Compact fluorescent lamp

9. Luminous flux - Wikipedia

   en.wikipedia.org/wiki/Luminous_flux

   Luminous flux - Wikipedia ... Luminous flux