Ngabe uyaliqonda "uLumen" ukuthi isibani kufanele sazi?

Ekuthengweni kwe-ngaphandleikhandaizibanina-indunaAmalambu avame ukubona igama elithi "uLumen", uyakuqonda?

Lumens = ukuphuma okukhanyayo. Ngamagama alula, amaLumens (aboniswe yi-LM) anesilinganiso senani eliphelele lokukhanya okubonakalayo (esweni lomuntu) esikhaleni noma emthonjeni okhanyayo.

Abaningingaphandle kwangaphandleinduna-mhlophe, I-Headlamp noma i-FlashlightUkulungiswa kunamalambu we-LED, asebenzisa amandla amancane ngakho-ke anesilinganiso esiphansi se-watt. Lokhu kwenza ama-watts esikujwayele ukukala ukukhanya kwesibani sokukhanya akusasebenzi, ngakho-ke abakhiqizi bashintshela ku-lumens.

U-Lumen, uphiko lomzimba oluchaza i-flux lokukhanya, lukalwa nge- "LM", emfushane nge "Lumen". Inani eliphakeme le-lumen, i-bulb ekhanyayo. Uma ungaqiniseki ngezinombolo ze-lumen, leli shadi le-incandescent kumalambu aholwayo lingakunikeza inkomba. Lokho wukuthi, lapho ufuna i-LED engafinyelela umthelela isibani se-100W Incandescent, khetha i-16-20W ye-LED futhi uzothola ukugqama okufanayo.

Engaphandle, ngokusho kwezinhlobo ezahlukahlukene zemisebenzi ngokuvamile zidinga amazinga ahlukene we-lumen, ungabhekisa kwidatha elandelayo: Ukuhamba ngemvula okungu-100, amalangabi acishe abe ngu-100

Qaphela lapho usebenzisaIzibani zangaphandle(Ikakhulu labo abanama-lumens aphezulu), ungabakhombisi emehlweni abantu. Ukukhanya okukhanyayo kakhulu kungadala ukulimala kwamehlo abantu.