Include your e-mail if you'd like us to get back to you.
We've received your feedback, thank you!
unit of luminous energy equal to a lumen of luminous flux acting for one hour, valgusenergia ühik, mis on võrdne ühe tunni jooksul toimiva valgusvoo kogusega
luumentund . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/luumentund/1/est (01.07.2026)
