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2. Recessed light - Wikipedia

   en.wikipedia.org/wiki/Recessed_light

   Different types of recessed lighting in a warehouse "Pot light" or "canister light" implies the hole is circular and the lighting fixture is cylindrical, like a pot or canister. There are three parts to a recessed lighting fixture: housing, trim and bulb. The trim is the visible portion of the light.

3. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   Between 1940 and 1956, all U.S. cars had to have two 7-inch (178 mm) round headlamps with dual filaments, so each lamp provided both a high and a low beam light distribution. In 1957, a system of four sealed-beam headlamps—two per side, of 5 + 3 / 4 inches (146 mm) diameter, was allowed in some U.S. states. The following year in 1958, all ...

4. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   3 ⁄ 4: 19.05 Fa8 single-pin; G10q quad-pin; Single-pin fluorescent lamps. Thorn/General Electric 2D fluorescent lamps and other similar lamps from various manufacturers. T8 T26 1 25.4 G13 bi-pin; Fa8 single-pin; R17d recessed double contact; One of the first diameters of fluorescent lamps, with the 15W T8 and 30W T8 having been introduced in ...

5. Multifaceted reflector - Wikipedia

   en.wikipedia.org/wiki/Multifaceted_reflector

   MR lamps are designated by symbols such as MR16 where the diameter is represented by numerals indicating units of eighths of an inch. Common sizes for general lighting are MR11 ( 11 ⁄ 8 inches, 35 mm) and MR16 ( 16 ⁄ 8 inches, 51 mm), with MR8 ( 8 ⁄ 8 inch, 25 mm) and MR20 ( 20 ⁄ 8 inches, 64 mm) used in specialty applications.

6. The big-ticket items to bookmark for October Prime Day - AOL

   www.aol.com/big-ticket-items-bookmark-october...

   Recessed TSA locks offer enhanced security and peace of mind. ... Make outdoor gatherings special with this stainless steel pizza oven that also functions as a BBQ and a smoker. ... HP 17.3-Inch ...

7. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   The spectrum of light emitted from a fluorescent lamp is the combination of light directly emitted by the mercury vapor, and light emitted by the phosphorescent coating. The spectral lines from the mercury emission and the phosphorescence effect give a combined spectral distribution of light that is different from those produced by incandescent ...