lightbulb

lightbulbA 3.4-watt lightbulb developed by Lemnis Lighting.

lightbulb, electric incandescent lamp based on a glowing metallic filament enclosed within a glass shell filled with an inert gas such as nitrogen. See incandescent lamp; lamp.

This article was most recently revised and updated by Amy Tikkanen.
Citation Information
Article Title: lightbulb
Website Name: Encyclopaedia Britannica
Publisher: Encyclopaedia Britannica, Inc.
Date Published: 28 March 2025
Access Date: April 21, 2025