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2. 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 ...

3. 3-way lamp - Wikipedia

   en.wikipedia.org/wiki/3-way_lamp

   The contacts of a 3-way bulb Circuit diagram of a 3-way bulb. A 3-way incandescent bulb has two filaments designed to produce different amounts of light. The two filaments can be activated separately or together, giving three different amounts of light. One common 3-way incandescent bulb is the 50/100/150 W.

4. File:Incandescent light bulb.svg - Wikipedia

   en.wikipedia.org/wiki/File:Incandescent_light...

   Diagram showing the major parts of a modern incandescent light bulb. ==Caption== #Glass bulb #Inert gas #Tungsten filament #Contact wire (goes to foot) #Contact wire (goes to base) #Supper wires #Glass mount/support #Base contact wire #Screw threads #Ins

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

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

   Incandescent bulbs create illumination by running an electric current through a filament that heats it until it glows. Edison's first practical light bulb used a carbonized cotton thread for that ...

6. Electric light - Wikipedia

   en.wikipedia.org/wiki/Electric_light

   Incandescent bulbs and their retrofit replacements are often specified as "A19/A60 E26/E27", a common size for those kinds of light bulbs. In this example, the "A" parameters describe the bulb size and shape within the A-series light bulb while the "E" parameters describe the Edison screw base size and thread characteristics. [35]

7. This Is Why Your Light Is Buzzing - AOL

   www.aol.com/why-light-buzzing-170500715.html

   The three main types of light bulbs are fluorescent, incandescent, and LED. Incandescent bulbs have been largely phased out due to their energy inefficiency—sales of halogen and incandescent ...