lightbulb

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The role of chemistry in Thomas Edison's inventions

lightbulb: Ediswan

A sign in a London electrical store reads Has the EU banned your light bulbs? with a large label stating BANNED over an image of a light bulb, displayed among boxed bulbs on a shelf.

sodium-vapour lamp bulb

A glowing light bulb radiates bright yellow light with its reflection visible below, set against a vibrant orange and yellow background.

Know how halogen and fluorescent bulbs, as well as sodium, mercury, and metal-halide vapour lamps, and LEDs work

How does electrical resistance affect a circuit?

lightbulb: References & Edit History

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Article History

Type	Description	Contributor	Date
	Add new Web site: Chemistry LibreTexts - How Do Fluorscent Light Bulbs Work.	Emily Rodriguez	Sep 11, 2026
	Add new Web site: ABC listen - Blueprint For Living - Iconic Designs: the light bulb.	Grace Young	Dec 20, 2025
	Add new Web site: Academia - Shedding light on the light bulb puzzle: attitudes and perception (PDF).	Aakanksha Gaur	May 24, 2025
	Add new Web site: Endourological Society - The Light Bulb, Cystoscopy, and Thomas Alva Edison (PDF).	Gloria Lotha	Mar 28, 2025
	Add new Web site: IOPscience - IOP Conference Series: Materials Science and Engineering - A review on electrical bulbs and its improvement over time: Saving energy or life? (PDF.	Gloria Lotha	Jan 31, 2025
	Add new Web site: Lifewire - Your Quick Guide to Smart Light Bulbs.	Gloria Lotha	Dec 05, 2024
	Add new Web site: The Franklin Institute - Edison's Lightbulb.	Gloria Lotha	Feb 28, 2024
	Add new Web site: PhysLab - Basic Physics of the Incandescent Lamp (Lightbulb).	Gloria Lotha	Nov 17, 2023
	Links and video added.	The Editors of Encyclopaedia Britannica	Apr 28, 2023
	Add new Web site: The Franklin Institute - Edison's Lightbulb.	Gloria Lotha	Feb 03, 2023
	Add new Web site: LiveScience - How do energy saving light bulbs work?	Aakanksha Gaur	Apr 19, 2018
	Add new Web site: Engineering and Technology History - Early Light Bulb.	Grace Young	Nov 23, 2017
	Add new Web site: Energy.gov - The History of the Light Bulb.	Grace Young	Nov 23, 2017
	Added new Web site: How Stuff Works - Home and Garden - How Light Bulbs Work.	Shiveta Singh	Nov 25, 2008
	Media added.	Amy Tikkanen	Aug 25, 2008
	Added new Web site: Enchanted Learning - The Invention of the Light Bulb.	Gaurav Shukla	Jul 18, 2008
	Article added to new online database.	The Editors of Encyclopaedia Britannica	Jul 20, 1998