filament lamp
filament lamp, variety of incandescent lamp (q.v.) in which the light source is a fine electrical conductor heated by the passage of current.
This article was most recently revised and updated by Amy Tikkanen.
Citation Information
Article Title:
filament lamp
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
15 January 2026
Access Date:
November 13, 2026