Ama-LED angama-Light Emitting Diode: izingxenye ze-elekthronikhi eziguqula amandla kagesi abe ekukhanyeni ngokuhamba kwama-electron ngaphakathi kwempahla ye-diode.Ama-LED abalulekile ngoba, ngenxa yokusebenza kahle kwawo kanye nokusebenzisa amandla aphansi, asephenduke indawo yemithombo eminingi yokukhanya evamile.
I-Surface Mounted Device (SMD) LED iyi-LED engu-1 ebhodini lesekethe, ingaba maphakathi namandla noma amandla aphansi futhi ayizweli kakhulu ekukhiqizeni ukushisa kune-COB (Chips On Board) LED.Ama-LED ama-SMD avame ukufakwa ku-Printed Service Board (PCB), ibhodi lesekethe lapho ama-LED adayiswa khona ngomshini.Uma kusetshenziswa inombolo encane yama-LED anamandla amakhulu uma kuqhathaniswa, ukusabalalisa ukushisa kule PCB akulungile.Kungcono ukusebenzisa i-LED yamandla aphakathi kuleso simo, ngoba ukushisa bese kuhlukaniswa kangcono phakathi kwe-LED nebhodi lesifunda.Ibhodi lesekethe kufanele futhi lilahlekelwe ukushisa.Lokhu kufezwa ngokubeka i-PCB kuphrofayela ye-aluminium.Imikhiqizo yokukhanyisa ye-LED yekhwalithi ephezulu inephrofayili ye-aluminium ngaphandle ukuze izinga lokushisa le-ambient lipholise isibani.Izinhlobo ezishibhile zifakwe i-plastic casing, njengoba ipulasitiki ishibhile kune-aluminium.Le mikhiqizo inikezela kuphela ngokukhipha ukushisa okuhle kusuka ku-LED kuya ku-base plate.Uma i-aluminium ingalahlekelwa yilokhu kushisa, ukupholisa kuhlala kuyinkinga.
Isilinganiso se-lumen nge-watt (lm/W) sibonisa ukusebenza kahle kwesibani.Lapho leli nani liphakeme, amandla amancane adingeka ukukhiqiza inani elithile lokukhanya.Sicela uqaphele uma leli nani linqunywa kumthombo wokukhanya noma i-luminaire iyonke noma ama-LED asetshenziswa kuwo.Ama-LED ngokwawo anenani eliphakeme.Kuhlala kukhona ukulahlekelwa ekusebenzeni kahle, isibonelo uma abashayeli nama-optics asetshenziswa.Lesi yisizathu esenza ukuthi ama-LED abe nokuphumayo okungu-180lm/W, kuyilapho okuphumayo kwe-luminaire iyonke kungu-140lm/W.Abakhiqizi kudingeka basho inani lomthombo wokukhanya noma i-luminaire.Ukukhishwa kwe-luminaire kubaluleke ngaphezu komthombo wokukhanya, ngoba izibani ze-LED zihlolwa sezizonke.
Isici samandla sibonisa ubudlelwano phakathi kokokufaka kwamandla namandla asetshenziselwa ukunika amandla i-LED ukuthi isebenze.Kusenokulahlekelwa kuma-chips e-LED nabashayeli.Isibonelo, isibani se-LED esingu-100W sinePF ye-0.95.Kulokhu, umshayeli udinga i-5W ukuze asebenze, okusho ukuthi amandla angu-95W LED kanye namandla omshayeli angu-5W.
I-UGR imele Isilinganiselwa Esikhanyayo Esihlanganisiwe, noma inani elibenyezelayo lomthombo wokukhanya.Leli inani elibaliwe lezinga le-luminaire blinding futhi libalulekile ekuhloleni ukunethezeka.
I-CRI noma Inkomba Yokunikeza Umbala iyinkomba yokunquma ukuthi imibala yemvelo iboniswa kanjani ukukhanya kwesibani, ngevelu eyireferensi ye-halogen noma isibani se-incandescent.
I-Standard Deviation Color Matching (SDMC) iyunithi yokulinganisa yomehluko wombala phakathi kwemikhiqizo ehlukene ekukhanyeni.Ukubekezelelana kombala kuvezwa ngezinyathelo ezahlukene ze-Mac-Adam.
I-DALI imele i-Digital Addressable Lighting Interface futhi isetshenziswa ekulawuleni ukukhanya.Kunethiwekhi noma isixazululo esizimele sodwa, ukufaka ngakunye kwabelwa ikheli lakhona.Lokhu kuvumela isibani ngasinye ukuthi sifinyeleleke ngasodwa futhi silawulwe (sivuliwe - sicishiwe - ukufiphala).I-DALI iqukethe idrayivu enezintambo ezingu-2 ehamba ngaphandle kokunikezwa kwamandla futhi inganwetshwa ngezinzwa ezinyakazayo nezilula phakathi kwezinye izinto.
Izinga le-LB liya ngokuya lishiwo ekucacisweni kwezibani.Lokhu kunikeza inkomba enhle yekhwalithi, kokubili mayelana nokuthola ukukhanya nokuhluleka kwe-LED.Inani 'L' libonisa inani lokutholwa kokukhanya ngemva kwempilo yonke.I-L70 ngemva kwamahora okusebenza angu-30,000 ibonisa ukuthi ngemva kwamahora okusebenza angu-30,000, u-70% wokukhanya usala.I-L90 ngemva kwamahora angu-50,000 ibonisa ukuthi ngemva kwamahora okusebenza angu-50,000, u-90% wokukhanya usala, ngaleyo ndlela ubonisa izinga eliphezulu kakhulu.Inani 'B' nalo libalulekile.Lokhu kuhlobene nephesenti elingase liphambuke kunani lika-L.Lokhu kungenzeka ngokwesibonelo ngenxa yokwehluleka kwama-LED.I-L70B50 ngemva kwamahora angu-30,000 iyincazelo evamile kakhulu.Kubonisa ukuthi ngemva kwamahora okusebenza angu-30,000, u-70% yenani elisha lokukhanya liyasala, nokuthi umkhawulo ongu-50% uyachezuka kulokhu.Inani B lisekelwe esimweni esibi kakhulu.Uma inani lika-B lingashiwongo, kusetshenziswa i-B50.Izibani ze-PVTECH zikalwe nge-L85B10, okubonisa ikhwalithi ephezulu yezibani zethu.
Izinzwa zokunyakaza noma izinzwa zokuba khona ziyinhlanganisela enhle kakhulu okufanele zisetshenziswe nezibani ze-LED, ngoba zingavula futhi zivale ngokuqondile.Lolu hlobo lokukhanyisa lufanelekile ehholo, noma endlini yangasese, kodwa lungasetshenziswa nasezindaweni ezihlukahlukene zezimboni kanye nezindawo zokugcina izimpahla lapho abantu besebenza khona.Izibani eziningi ze-LED zihlolwa ukuze zikwazi ukusinda izikhathi ezishintshayo ezingu-1,000,000, okulungele ukusetshenziswa kweminyaka.Ithiphu elilodwa: kungcono ukusebenzisa umtshina onyakazayo ohlukene ne-luminaire, njengoba umthombo wokukhanya kungenzeka uhlale isikhathi eside kunenzwa.Ngaphezu kwalokho, inzwa enesici ingavimbela ukonga okwengeziwe kwezindleko.
Izinga lokushisa lokusebenza liyithonya elikhulu esikhathini sokuphila sama-LED.Izinga lokushisa elinconywayo lokusebenza lincike ekupholiseni okukhethiwe, umshayeli, ama-LED nezindlu.Iyunithi kufanele yahlulelwe iyonke, kunokuba yahlulelwe izingxenye zayo ngokwehlukana.Phela, 'isixhumanisi esibuthakathaka' singaba yisona esinqumayo.Izindawo zokushisa eziphansi zilungele ama-LED.Amaseli okupholisa nokuqandisa afaneleka ngokukhethekile, ngoba ama-LED angakwazi ukuqeda ukushisa kahle.Njengoba ukushisa okuncane sekuvele kukhiqizwe nge-LED kunokukhanyisa okuvamile, ukupholisa kuzodinga amandla amancane ukuze kugcinwe izinga lokushisa lakho.Isimo sokuwina-win!Ezimweni ezifudumele, isimo siyahluka.Izibani eziningi ze-LED zinezinga lokushisa eliphezulu lokusebenza elingu-35° Celsius, ukukhanya kwe-PVTECH kukhuphukela ku-65°C!
Ama-LED anokukhanya okugxilile, ngokungafani nezibani zendabuko ezisakaza ukukhanya endaweni eyizungezile.Uma izibani ze-LED zihlinzekwa ngezibonisi, ukukhanya okuningi okumaphakathi nendawo kushiya uhlelo ngaphandle kokuthintana nesibonisi.Lokhu kunciphisa izinga lokushintshwa kwe-beam yokukhanya futhi kungaba imbangela yokuphuphuthekisa.Amalensi asiza ukuqondisa cishe yonke imisebe yokukhanya ekhishwa yi-LED.