# http en wikipedia org wiki incandescent light bulb

Centennial Light - Wikipedia » The Centennial Light is the world's longest-lasting light bulb, burning since 1901, and almost never switched off. It is at 4550 East Avenue, Livermore, California, and maintained by the Livermore-Pleasanton Fire Department. Due to its longevity, the bulb has been noted by The Guinness Book of World… The hand- blown, carbon-filament common light bulb was manufactured in ... En.wikipedia.org

Thomas Edison - Wikipedia » However, Hammer worked primarily on the incandescent electric lamp and was put in charge of tests and records on that device (see ... En.wikipedia.org

Edison screw - Wikipedia » 230-volt incandescent light bulb with E27 screw base. Edison screw (ES) is a standard lightbulb socket for electric light bulbs. It was developed by… In the United States, early manufacturers of incandescent lamps used several different… https://patents.google.com/patent/US438310; ^ I.C.S. Reference Library volume 4B, ... En.wikipedia.org

Halogen lamp - Wikipedia » A halogen lamp, also known as a tungsten halogen, quartz-halogen or quartz iodine lamp, is an incandescent lamp consisting of a tungsten filament sealed into ... En.wikipedia.org

Fluorescent lamp - Wikipedia » The mercury-vapor lamp was superior to the incandescent lamps of the time in terms of energy ... En.wikipedia.org

Phoebus cartel - Wikipedia » The Phoebus cartel existed to control the manufacture and sale of incandescent light bulbs. They appropriated market territories and fixed the useful life of such ... En.wikipedia.org

Phase-out of incandescent light bulbs - Wikipedia » Governments around the world have passed measures to phase out incandescent light bulbs for general lighting in favor of more energy-efficient lighting ... En.wikipedia.org

Electric light - Wikipedia » Lamps are commonly called light bulbs; for example, the incandescent light bulb. Lamps usually have a base made of ceramic, metal, glass, or plastic, which ... En.wikipedia.org

Light-emitting diode - Wikipedia » However, commercially available LEDs have an efficiency of up to 223 lm/w. Compared to incandescent bulbs, this is not only a huge increase in electrical ... En.wikipedia.org

Incandescent light bulb - Wikipedia » An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light… Incandescent bulbs are much less efficient than other types of electric lighting, converting less than 5% of… Wiki Source.… Retrieved from " https://en.wikipedia.org/w/index.php?title=Incandescent_light_bulb&oldid= 945763574". En.wikipedia.org