Yini i-L70?
Izinto ezintathu zingabulala i-LED. Ukushisa, ukungcola kanye nomswakama kungathinta kabi impilo ye-LED. Eqinisweni, ngisho noma ama-LED angahlala unomphela, ukuphuma kwawo kwe-lumen kuzokwehla kancane kancane ngokuhamba kwesikhathi kuze kube yilapho engasasebenzi njengomthombo wokukhanya owusizo. Lokhu sikubiza ngokuthi "izinga lokulungisa i-lumen." Imboni inqume ukuthi ama-LED awasewona umthombo wokukhanya owusizo lapho ukuphuma kwelumen kwehliselwa ku-70% wokukhanya kwawo kokuqala. Lokhu kubizwa nge-L70.
I-L70 iyindinganiso yokulinganisa impilo eyakhiwe yi-IESNA (Illuminating Engineering Society yaseNyakatho Melika) ukuze ihlole impilo yesibani se-LED kuze kube yilapho amahora okukhiphayo alindelekile okukhipha ukukhanya encishiswa abe ngu-70% weleveli yokuqala. Noma uma ukuphuma kwelume kungu-70% wokukhiphayo kokuqala. Isibonelo, uma i-LED iqala ukukhanyisa kumalumensi ayi-100 futhi ngemva kwamahora angu-40,000 ikhipha ama-lumens angu-70 kuphela (70% okukhiphayo kwasekuqaleni) kusho ukuthi ukuphila okulinganiselwe kwe-L70 kwale LED kungamahora angu-40,000.
Njengoba ama-LED engaphumeleli futhi "ashise" njengeminye imithombo yokukhanya; kunalokho, ancipha kancane kancane aze angasakhiqizi ukukhanya okuwusizo. Ngokuvamile kunqunywa ukuthi iso lomuntu lizwela kuphela ekuwohlokeni kwe-lumen okungama-30% noma ngaphezulu. Ngakho-ke, isikhathi sokuphila se-L70 sichazwa yi-Lighting Engineering Society Standard LM-80-08, enesihloko esithi "Izindlela Zokulinganisa Ukugcinwa Kwe-Lumen Yemithombo Yokukhanya Ye-LED Egunyazwe I-IES".
Impilo ye-L70 incike ezintweni eziningi eziguquguqukayo, ezifana nezinga lokushisa lokusebenza, idrayivu yamanje, kanye nobuchwepheshe nezinto ezisetshenziswa ukwakha umkhiqizo.