Cov xwm txheej tam sim no ntawm LED qhov muag teev

Tam sim no, lub zog tseem ceeb ntawm LED qhov muag teev ntawm lub khw yog nyob nruab nrab ntawm 3W thiab 9W. Hauv cov neeg siv khoom lag luam, 3W thiab 5W qij muag tau zoo tshaj plaws, thaum 8W thiab 12W qhov muag teev muaj ntau dua hauv kev tsim vaj tsev. Hais txog tus nqi, 3W LED qhov muag teev muaj li ntawm 3.5 yuan rau 25 yuan. Cov nqi sib txawv ib txwm qhia qhov zoo sib txawv. Yog li, tus nqi twg yog qhov txaus siab rau cov neeg siv khoom? Puas yog cov neeg siv khoom nyiam dua - cov nqi LED teeb?

Kev txheeb cais qhia tau hais tias 3W LED qhov muag teev nqi ib ncig ntawm 13 yuan tau txais ntau dua rau cov neeg siv khoom, thaum cov neeg nyob ib puag ncig 10 yuan muag zoo tshaj plaws. Nws zoo nkaus li tias tus nqi qis tsis yog ib txwm zoo dua. Cov neeg siv khoom feem ntau yog qhov muaj txiaj ntsig zoo, nrhiav tus nqi siab tshaj -kev ua tau zoo. Lawv txhawj txog qhov tsis zoo ntawm tus nqi qis heev. LED qhov muag teev nqi ib ncig ntawm 3 yuan ntawm lub khw feem ntau siv cov yas plhaub nrog zoo tsis muaj cua sov dissipation. Lawv siv domestically tsim LED chips, uas yog tsis ruaj tsis khov thiab feem ntau kav li ntawm rau lub hlis. Cov khoom no feem ntau yog tsim los ntawm cov tuam txhab LED me me thiab yog li tsis yog thawj qhov kev xaiv rau cov neeg siv khoom. Txhua tus neeg siv khoom xav yuav cov khoom ntawm tus nqi qis tshaj plaws thaum ua kom zoo. Yog li ntawd, yog tias LED qhov muag teev tuaj yeem raug nqi qis dua 10 yuan thaum tswj xyuas qhov zoo, cov neeg siv khoom yuav pom lawv ntau dua, ua rau kev muag khoom zoo dua. Hloov pauv, cov neeg siv khoom tsis tshua lees txais cov khoom uas kim dhau.

Tsis tas li ntawd, kev paub txog hom lag luam plays lub luag haujlwm tseem ceeb. Yog tias lub npe muaj npe nrov, tus nqi siab dua me ntsis yog qhov tau txais ntau dua, vim nws lav zoo thiab muab kev thaj yeeb ntawm lub siab. Yog li ntawd, cov tuam txhab teeb pom kev zoo LED tau siv zog los tsim lawv tus kheej lub npe, suav nrog cov tsim teeb ci LED. Muab tus naj npawb ntawm cov npe nyob rau hauv lub lag luam LED teeb tam sim no, lawv nquag tsim lawv tus kheej lub npe, muab cov nqi sib tw thiab txhim khu kev qha zoo los xyuas kom cov neeg siv khoom muaj kev ntseeg siab thiab kev nyab xeeb.

Ib qho kev soj ntsuam random qhia tau hais tias 50% ntawm LED qhov muag teev ua tsis tau tejyam kev ntsuam xyuas. Raws li tsab ntawv ceeb toom los ntawm Guangzhou Municipal Administration rau Kev Lag Luam thiab Kev Lag Luam, Guangzhou Municipal Institute of Quality Supervision and Inspection tsis ntev los no tau ua cov qauv tshuaj xyuas ntawm 30 LED teeb khoom los ntawm 18 lub tuam txhab muag hauv Guangzhou. Kev tshuaj xyuas tau pom tias 15 cov qauv dhau los ntawm tag nrho cov kev xeem, thaum qhov seem 15 cov qauv raug suav tias tsis tsim nyog, ua rau qhov tsis ua tiav ntawm 50%. Ntawm cov khoom uas pom tau tias tsis zoo, MLS LED qhov muag teev (sov dawb), Shangjin LED qhov muag teev (zog-txuag 6W), thiab Suori 2U hluav taws xob hluav taws xob- txuag qhov muag teev (chrysanthemum series, ultra{13}} ci ntsa iab) tau teev, nrog rau cov khoom lag luam los ntawm cov tuam txhab paub zoo xws li,{14}O Resistant, Jindian Teeb pom kev zoo hluav taws xob Hoobkas.

Nws tau nkag siab tias cov laj thawj tseem ceeb ntawm qhov tsis zoo ntawm LED qhov muag teev nyob rau hauv qhov chaw kuaj xyuas no tsis meej lossis tsis tiav daim ntawv lo ntawm cov ntsuas hluav taws xob, ntsuas zaus, thiab kev txwv kev siv, uas tuaj yeem yooj yim ua rau muaj kev nyab xeeb thaum nruab thiab siv. Tsis tas li ntawd, xya lub qhov muag teev tsis ua raws li qhov yuav tsum tau ua rau kev tiv thaiv kev tiv thaiv hluav taws xob thiab lub zog dielectric tom qab tau txais kev kho dej noo, thiab txawm tias tawg hauv qhov kev sim dielectric zog. Qhov no tej zaum yuav yog vim kev siv cov khoom tsis zoo - cov ntaub ntawv rwb thaiv tsev zoo, ua rau muaj kev hem thawj rau cov neeg siv khoom lub neej thiab khoom.