en

useful luminous flux

1

Terminological databases

Valgustehnika terminibaas

ID 644107 Last modified 24.09.2025
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Domain electric lighting
  • osa valgusallika valgusvoost, mis aitab valdavalt kaasa valgustusülesande täitmisele
    Good to know
    • Ühik: luumen, lm
  • part of the luminous flux of a light source that contributes predominantly to the lighting task
    Good to know
    • Unit: lumen, lm
kasulik valgusvoog
Usage examples
  • Mida suurem on valgusti kasulik valgusvoog, seda suurem on valgusti valguslik kasutegur.

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