Ma LED ndi Light Emitting Diodes: zida zamagetsi zomwe zimatembenuza mphamvu zamagetsi mwachindunji kukhala kuwala kudzera mukuyenda kwa ma elekitironi mkati mwa zida za diode.Ma LED ndi ofunikira chifukwa, chifukwa cha mphamvu zawo komanso kugwiritsa ntchito mphamvu zochepa, alowa m'malo mwa magwero ambiri owunikira.
The Surface Mounted Device (SMD) LED ndi 1 LED pa bolodi yozungulira, yomwe imatha kukhala pakati pa mphamvu kapena mphamvu yochepa ndipo imakhala yosakhudzidwa kwambiri ndi kutentha kusiyana ndi COB (Chips On Board) LED.Ma LED a SMD nthawi zambiri amaikidwa pa Printed Service Board (PCB), bolodi lozungulira pomwe ma LED amagulitsidwa pamakina.Pamene ma LED ochepa omwe ali ndi mphamvu zambiri amagwiritsidwa ntchito, kugawa kwa kutentha pa PCB iyi sikungakhale bwino.Ndi bwino kugwiritsa ntchito kuwala kwapakati pa mphamvu ya LED, chifukwa kutentha kumagawidwa bwino pakati pa LED ndi bolodi la dera.Komiti yoyang'anira dera iyeneranso kutaya kutentha.Izi zimatheka poyika PCB pa mbiri ya aluminiyamu.Zowunikira zapamwamba za LED zili ndi mbiri ya aluminiyamu kunja kuti kutentha kozungulira kuziziritsa nyali.Mitundu yotsika mtengo imakhala ndi chotengera cha pulasitiki, chifukwa pulasitiki ndi yotsika mtengo kuposa aluminiyumu.Zogulitsazi zimangopereka kutentha kwabwino kuchokera ku LED kupita ku mbale yoyambira.Ngati aluminiyamu sitaya kutentha uku, kuziziritsa kumakhalabe kovuta.
Chiŵerengero cha lumen pa watt (lm/W) chimasonyeza mphamvu ya nyali.Kukwera mtengo uku, mphamvu yochepa imafunika kuti ipange kuwala kwina.Chonde dziwani ngati mtengowu watsimikiziridwa pa gwero la kuwala kapena nyali zonse kapena ma LED omwe amagwiritsidwa ntchito mmenemo.Ma LED okha ali ndi mtengo wapamwamba.Nthawi zonse pamakhala kuwonongeka kwina, mwachitsanzo pamene madalaivala ndi optics amagwiritsidwa ntchito.Ichi ndichifukwa chake ma LED amatha kutulutsa 180lm/W, pomwe zowunikira zonse ndi 140lm/W.Opanga akuyenera kunena za mtengo wa nyali kapena nyali.Kutulutsa kwa nyaliyo kumakhala patsogolo kuposa kutulutsa kwa gwero, chifukwa zowunikira za LED zimawunikidwa zonse.
Mphamvu yamagetsi imasonyeza mgwirizano pakati pa kulowetsa mphamvu ndi mphamvu zomwe zimagwiritsidwa ntchito kuti LED igwire ntchito.Palinso kutayika kwa tchipisi ta LED ndi madalaivala.Mwachitsanzo, nyali ya 100W LED ili ndi PF ya 0.95.Pankhaniyi, dalaivala amafuna 5W kuti agwire ntchito, kutanthauza 95W LED mphamvu ndi 5W dalaivala mphamvu.
UGR imayimira Unified Glare Rating, kapena mtengo wa kuwala kwa gwero la kuwala.Uwu ndi mtengo wowerengeredwa pamlingo wa khungu la luminaire ndipo ndi wofunikira pakuwunika chitonthozo.
CRI kapena Color Rendering Index ndi ndondomeko yowonetsera momwe mitundu yachilengedwe imasonyezedwera ndi kuwala kwa nyali, ndi mtengo wamtengo wapatali wa nyali ya halogen kapena incandescent.
Standard Deviation Color Matching (SDMC) ndi gawo loyezera kusiyana kwa mitundu pakati pa zinthu zosiyanasiyana pakuwunikira.Kulekerera kwamtundu kumawonetsedwa mumayendedwe osiyanasiyana a Mac-Adam.
DALI imayimira Digital Addressable Lighting Interface ndipo imagwiritsidwa ntchito pakuwongolera kuwala.Mu netiweki kapena njira yodziyimira yokha, cholumikizira chilichonse chimapatsidwa adilesi yakeyake.Izi zimalola kuti nyali iliyonse ikhale yofikirika payekha ndikuwongoleredwa (pa - off - dimming).DALI imakhala ndi 2-waya drive yomwe imayenderana ndi magetsi ndipo imatha kukulitsidwa ndi masensa oyenda ndi kuwala pakati pa zinthu zina.
Muyezo wa LB umachulukirachulukira pakutchulidwa kwa nyali.Izi zimapereka chisonyezero chabwino cha khalidwe, ponseponse potsata kuwala kwa kuwala ndi kulephera kwa LED.Mtengo wa 'L' umasonyeza kuchuluka kwa kuwala kwa kuwala pambuyo pa moyo wonse.L70 pambuyo pa maola 30,000 ogwira ntchito amasonyeza kuti pambuyo pa maola 30,000 ogwira ntchito, 70% ya kuwala kumakhalabe.L90 pambuyo pa maola 50,000 imasonyeza kuti pambuyo pa maola 50,000 ogwira ntchito, 90% ya kuwala imasiyidwa, motero imasonyeza khalidwe lapamwamba kwambiri.Mtengo wa 'B' ndiwofunikanso.Izi zikugwirizana ndi kuchuluka komwe kungachoke pamtengo wa L.Izi zitha mwachitsanzo chifukwa cha kulephera kwa ma LED.L70B50 pambuyo pa maola 30,000 ndizodziwika kwambiri.Zimasonyeza kuti pambuyo pa maola ogwiritsira ntchito 30,000, 70% ya kuwala kwatsopano kwatsala, ndipo kuti 50% yochuluka kwambiri imachoka pa izi.Mtengo wa B umatengera zochitika zoyipa kwambiri.Ngati mtengo wa B sunatchulidwe, B50 imagwiritsidwa ntchito.Zowunikira za PVTECH zidavotera L85B10, zomwe zikuwonetsa mawonekedwe apamwamba a zowunikira zathu.
Zowunikira zoyenda kapena masensa opezekapo ndiwophatikiza bwino kwambiri kuti agwiritsidwe ntchito ndi kuyatsa kwa LED, chifukwa amatha kuyatsa ndikuzimitsa mwachindunji.Kuunikira kotereku ndi koyenera muholo, kapena m’chimbudzi, koma kungagwiritsidwenso ntchito m’malo osiyanasiyana a mafakitale ndi malo osungiramo zinthu kumene anthu akugwira ntchito.Magetsi ambiri a LED amayesedwa kuti apulumuke nthawi 1,000,000 zosintha, zomwe ndi zabwino kwa zaka zogwiritsidwa ntchito.Langizo limodzi: Ndikwabwino kugwiritsa ntchito chowunikira chosiyana ndi chowunikira, popeza gwero la kuwala limatha kukhala nthawi yayitali kuposa sensa.Kuphatikiza apo, sensor yolakwika imatha kuletsa kupulumutsa ndalama zina.
Kutentha kwa ntchito kumakhudza kwambiri moyo wa ma LED.Kutentha kogwiritsira ntchito kovomerezeka kumadalira kuzizira kosankhidwa, dalaivala, ma LED ndi nyumba.Gawo liyenera kuweruzidwa lonse, osati zigawo zake padera.Kupatula apo, 'ulalo wofooka' ukhoza kukhala wotsimikiza.Malo otentha otsika ndi abwino kwa ma LED.Maselo oziziritsa ndi ozizira ndi oyenera makamaka, chifukwa ma LED amatha kuchotsa kutentha bwino.Popeza kutentha kochepa kumapangidwa kale ndi LED kusiyana ndi kuyatsa wamba, kuziziritsa kumafunikanso mphamvu zochepa kuti zisunge kutentha kwake.Mkhalidwe wopambana!M'madera otentha kwambiri, zinthu zimakhala zosiyana.Kuwala kochuluka kwa LED kumakhala ndi kutentha kwakukulu kwa 35 ° Celsius, kuyatsa kwa PVTECH kumapita ku 65 ° C!
Ma LED ali ndi kuwala koyang'ana, mosiyana ndi zounikira zachikhalidwe zomwe zimayatsira kuwala pamalo ake.Pamene zounikira za LED zimaperekedwa ndi zowunikira, kuwala kochuluka pakati pa mtengowo kumachoka padongosolo popanda ngakhale kukhudzana ndi chowonetsera.Izi zimachepetsa kusinthasintha kwa kuwala kwa kuwala ndipo kungakhale chifukwa cha khungu.Magalasi amathandizira kuwongolera pafupifupi kuwala kulikonse komwe kumatulutsa ndi LED.