Nrog kev sib txuam ntawm kev siv sijhawm thiab kev yaig ntawm lub hnub thiab nag, cov kab teeb ci LED yuav xav tias LED kab teeb ci tsis zoo li yav dhau los tom qab ib xyoos twg. Nov yog lub sij hawm tshaj lij nyob hauv kev lag luam teeb pom kev zoo hluav taws xob tsis zoo. Qhov teeb meem tshwm sim ntawm lub teeb ntom nti yog qhov teeb meem tsis muaj teeb meem rau lub teeb txawb LED. cov roj thiab teeb moos soos muaj qhov kev pab cuam lub neej.
Nyob rau hauv qhov chaw sab nraum zoov, lub hnub txhua hnub, cua, thiab nag yog cov yam tsis paub uas ua rau lub teeb ci ntawm LED teeb teeb kom tsawg. Ntxiv rau qhov kev zam tsis raug cai no kuj tseem muaj tib neeg yam. Feem ntau, qhov kev pab lub neej ntawm LEDs yog txog 50,000 teev. Yuav kom nkag siab los ntawm cov tib neeg cov kev xav, muaj tag nrho 50,000 teev lub neej. Yog tias lub teeb tig thaum 6 o' teev nyob rau yav tsaus ntuj txhua hnub txog 12 teev sawv ntxov, lub teeb ci tsuas qhib rau 6 teev ib xyoos. 365 hnub, tsuas yog 2190 teev nyob rau ib xyoo, puas yog' t uas 23 xyoo?
Txawm li cas los xij, qhov no tsuas yog cov ntaub ntawv theoretical hauv chav kuaj. Kev siv tiag tiag, kev ua lub neej ntawm LED linear teeb tsis tuaj yeem xam los ntawm kev ua lej sib npaug thiab sib faib. Kev siv tsis raug kuj tseem yuav ua kom lub teeb hluav taws xob qeeb. Tsis tas li ntawd, thaum lub sijhawm txheej txheem teeb tsa, cov neeg teeb tsa feem ntau xav txuag lub sijhawm ua haujlwm thiab yooj yim ntawm kev teeb tsa. Thaum lub teeb txawb tua, lawv tsis tau teeb tsa raws li cov lej ntawm LED kab hluav taws xob teeb uas paub los ntawm cov chaw tsim khoom. Feem ntau cov naj npawb ntawm cov teeb hauv series yog overloaded, uas ua rau LED teeb hluav taws xob teeb. Cov cwj pwm uas ua rau lub neej puas ntawm LED teeb hluav taws xob teeb xws li hluav taws xob tsis ruaj khov thiab qhov tam sim no. Raws li kev ua lag luam tawm tswv yim, nws tuaj yeem paub tias qhov kev pab cuam lub neej ntawm sab nraum zoov sab nrauv LED teeb cov teeb ci yuav yog 2-3 xyoos, thiab qee tus tuaj yeem ncav cuag tsib lossis rau xyoo, tab sis sijhawm ntev dua, qis dua qhov ci ntawm LED linear teeb Cov.
