File:Chaumont_(_52_)_André_Blondel_(_1863_-_1938_).jpg · Wikimedia Commons · See Wikimedia Commons
AI overview
A lumen is the standard scientific unit used to measure how much visible light a source produces in all directions. It matters because it helps people compare the brightness of different light sources—like light bulbs—in a consistent, standardized way.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
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- derived from base unit
- candela
- measured physical quantity
- luminous flux
- conversion to SI unit
- 1
- unit symbol
- lm
- Wikidata SPARQL query equivalent
- wd:Q484092 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
- different from
- Lumen
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
Sources (2)
via Wikidata · CC0
Gallery (2)
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