Kodi kuchepetsa kuwala kwa LED ndi chiyani?
Kuwala kwa kuwala kwa LED kumatanthawuza kuti kuwala kwa kuwala kwa LED kudzakhala kotsika kusiyana ndi kuwala koyambirira pambuyo pa kuyatsa, ndipo gawo lapansi ndilo kuyatsa kwa kuwala kwa LED. Nthawi zambiri, opanga phukusi la LED amayesa mu labotale (pa kutentha kwabwino kwa 25 ° C), ndikuwunikira mosalekeza nyali ya LED ndi mphamvu ya DC ya 20MA kwa maola 1000 kuti afananize kulimba kwa kuwala isanayambe kapena itatha kuyatsa. .
Kuwerengera njira yochepetsera kuwala
Kuchepetsa kuwala kwa N-ola = 1- (N-hour light flux / 0-hour light flux)
Kuwala kwa ma LED opangidwa ndi makampani osiyanasiyana ndi kosiyana, ndipo ma LED amphamvu kwambiri adzakhalanso ndi kuchepa kwa kuwala, ndipo amakhala ndi chiyanjano chachindunji ndi kutentha, zomwe makamaka zimadalira chip, phosphor ndi teknoloji yonyamula. Kuwala kowala kwa ma LED (kuphatikiza kutulutsa kowala kowala, kusintha kwamitundu, etc.) ndi muyeso wa mtundu wa LED, komanso ndi nkhani yodetsa nkhawa kwambiri kwa opanga ma LED ambiri ndi ogwiritsa ntchito ma LED.
Malinga ndi tanthauzo la moyo wa zinthu za LED mumakampani a LED, moyo wa LED ndi nthawi yogwira ntchito kuyambira pamtengo woyambira mpaka kutha kwa kuwala mpaka 50% ya mtengo woyambirira. Zikutanthauza kuti LED ikafika pa moyo wake wothandiza, LED idzakhala ikugwirabe ntchito. Komabe, pansi pa kuyatsa, ngati kuwala kumachepetsedwa ndi 50%, kuwala sikuloledwa. Nthawi zambiri, kuyatsa kwa kuyatsa kwamkati sikungakhale kopitilira 20%, ndipo kuyatsa kwakuya kwakunja sikungapitirire 30%.