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ühesugust liiki leedlampide suhtelise kogumi y suhteline tõrgete arv eluea kestel, percentage y of a number of LED lamps of the same type, that at their rated life designates the percentagefraction of failures
tunnus-eluea tõrkesuhe . Valgustehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//valgus/tunnus-eluea%20t%C3%B5rkesuhe/1/est (22.08.2026)
