luminous efficacy of a source

ratio between the emitted luminous flux and the electrical power consumed by a light source
Thing general Q3425218
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luminous efficacy of a source

Summary

luminous efficacy of a source has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[1]

Key Facts

  • luminous efficacy of a source's GND ID is recorded as 4441713-5[2].
  • luminous efficacy of a source's subclass of is recorded as physical quantity[3].
  • luminous efficacy of a source's subclass of is recorded as photometric quantity[4].
  • luminous efficacy of a source's described by source is recorded as ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation[5].
  • luminous efficacy of a source's different from is recorded as luminous efficacy of radiation[6].
  • luminous efficacy of a source's different from is recorded as radiant efficiency[7].
  • luminous efficacy of a source's defining formula is recorded as \eta_{\mathrm{v}} = \frac{\Phi_{\mathrm{v}}}{P}[8].
  • luminous efficacy of a source's Google Knowledge Graph ID is recorded as /g/1215vkdq[9].
  • luminous efficacy of a source's ISQ dimension is recorded as \mathsf{L}^{-2} \mathsf{M}^{-1} \mathsf{T}^3 \mathsf{J}[10].
  • luminous efficacy of a source's maintained by WikiProject is recorded as WikiProject Mathematics[11].
  • luminous efficacy of a source's in defining formula is recorded as \eta_{\mathrm{v}}[12].
  • luminous efficacy of a source's in defining formula is recorded as \Phi_{\mathrm{v}}[13].
  • luminous efficacy of a source's in defining formula is recorded as P[14].
  • luminous efficacy of a source's Wolfram Language quantity ID is recorded as LuminousEfficacyOfASource[15].
  • luminous efficacy of a source's quantity symbol is recorded as \eta_{\mathrm{v}}[16].
  • luminous efficacy of a source's recommended unit of measurement is recorded as lumen per watt[17].
  • luminous efficacy of a source's recommended unit of measurement is recorded as candela steradian cubic second per kilogram square metre[18].
  • luminous efficacy of a source's IEV number is recorded as 845-21-089[19].

Why It Matters

luminous efficacy of a source has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[1] It is known by 5 alternative names across languages and contexts.[20]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation. wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation. wikidata.org.
  17. [18] . ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation. wikidata.org.
  18. [19] . wikidata.org.

Aggregate / graph-position facts

  1. [1] . Wikidata sitelinks. wikidata.org.
  2. [20] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). luminous efficacy of a source. Retrieved April 10, 2026, from https://4ort.xyz/entity/luminous-efficacy-of-a-source
MLA “luminous efficacy of a source.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/luminous-efficacy-of-a-source.
BibTeX @misc{4ortxyz_luminous-efficacy-of-a-source_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{luminous efficacy of a source}}, year = {2026}, url = {https://4ort.xyz/entity/luminous-efficacy-of-a-source}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): luminous efficacy of a source — https://4ort.xyz/entity/luminous-efficacy-of-a-source (retrieved 2026-04-10)

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