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2. Incandescent light bulb - Wikipedia

   en.wikipedia.org/wiki/Incandescent_light_bulb

   A 230-volt incandescent light bulb with a medium-sized E27 (Edison 27 mm) male screw base. The filament is visible as the mostly horizontal line between the vertical supply wires. A scanning electron microscope image of the tungsten filament of an incandescent light bulb Elaborate light in Denver, Colorado

3. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   A halogen lamp (also called tungsten halogen, quartz-halogen, and quartz iodine lamp) is an incandescent lamp consisting of a tungsten filament sealed in a compact transparent envelope that is filled with a mixture of an inert gas and a small amount of a halogen, such as iodine or bromine. The combination of the halogen gas and the tungsten ...

4. Edison light bulb - Wikipedia

   en.wikipedia.org/wiki/Edison_light_bulb

   Edison light bulb. Edison light bulbs, also known as filament light bulbs and retroactively referred to as antique light bulbs or vintage light bulbs, are either carbon- or early tungsten -filament incandescent light bulbs, or modern bulbs that reproduce their appearance. Most of the bulbs in circulation are reproductions of the wound filament ...

5. These are the best — and worst — lightbulbs for the planet

   www.aol.com/lifestyle/best-worst-lightbulbs...

   Incandescent. Though still the most popular type of bulb, Edison's invention is fast becoming outdated and for good reason: Only 10% of the power winds up in the visible spectrum, making it ...

6. Phase-out of incandescent light bulbs - Wikipedia

   en.wikipedia.org/wiki/Phase-out_of_incandescent...

   Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy- efficient alternatives. The regulations are generally based on efficiency, rather than use of incandescent technology. Brazil and Venezuela started the phase-out in 2005, [citation ...

7. Prepare to flick off your incandescent bulbs for good under ...

   www.aol.com/news/prepare-flick-off-incandescent...

   Edison's first practical light bulb used a carbonized cotton thread for that purpose; modern bulbs use tungsten filaments in an inert gas. But incandescents are not very efficient.