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2. Light fixture - Wikipedia

   en.wikipedia.org/wiki/Light_fixture

   Ceiling fans with built-in lights may eliminate the need for separate overhead light fixtures in a room, and light kits can also replace any ceiling-mounted light fixtures that were displaced by the installation of the ceiling fan. Emergency lighting or exit sign – connected to a battery backup or to an electric circuit that has emergency ...

3. Incandescent light bulb - Wikipedia

   en.wikipedia.org/wiki/Incandescent_light_bulb

   An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires ...

4. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   The latter use a standard light switch, and the on-board electronics chooses the light output level based on the number of times the switch is turned on and off quickly. Dimmable CFLs are not a 100% replacement for incandescent fixtures that are dimmed for "mood scenes" such as wall sconces in a dining area.

5. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]

6. Plasma globe - Wikipedia

   en.wikipedia.org/wiki/Plasma_globe

   A plasma ball with filaments extending between the inner and outer spheres. A plasma ball, plasma globe, or plasma lamp is a clear glass container filled with noble gases, usually a mixture of neon, krypton, and xenon, that has a high-voltage electrode in the center of the container.

7. Wikipedia:Vital articles/List of all articles - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

   (2,877) T Tauri star · T cell · T-Series (company) · T-shirt · T-square · T-top · T. Allston Brown · T. Berry Brazelton · T. Boone Pickens · T. E. Hulme · T. E. Lawrence · T. H. Green · T. H. White · T. Nelson Downs · T. S. Eliot · T.A.T.u. · TGV · TIFF · TLC (group) · TNT · TNT equivalent · TRAPPIST-1 · TRS-80 · TSMC · TU Dresden · TV Guide · TVXQ · TW Hydrae · Ta ...