Ukukhanya kwe-LED kwehlukile kwe-incandescent ne-fluorescent ngezindlela eziningana. Uma yakhelwe kahle, ukukhanya kwe-LED kusebenza kahle, kwenza izinto eziningi, futhi kuhlala isikhathi eside.
Ama-LED ayimithombo yokukhanya "eqondisayo", okusho ukuthi akhipha ukukhanya ohlangothini oluthile, ngokungafani ne-incandescent ne-CFL, ekhipha ukukhanya nokushisa kuzo zonke izinhlangothi. Lokho kusho ukuthi ama-LEDs akwazi ukusebenzisa ukukhanya namandla kahle kakhulu kuningi lezicelo. Kodwa-ke, futhi kusho ukuthi ubunjiniyela obuphezulu buyadingeka ukukhiqiza isibani se-LED esikhanya ukukhanya kuzo zonke izinhlangothi.
Imibala ejwayelekile ye-LED ifaka i-amber, ebomvu, eluhlaza futhi eluhlaza okwesibhakabhaka. Ukukhiqiza ukukhanya okumhlophe, ama-LED anemibala ehlukene ayahlanganiswa noma ambozwe ngezinto ze-phosphor eziguqula umbala wokukhanya kube ukukhanya okujwayelekile "okumhlophe" okusetshenziswa emakhaya. I-Phosphor yinto ephuzi ehlanganisa amanye ama-LED. Ama-LED anemibala asetshenziswa kabanzi njengezibani zesiginali namalambu okukhomba, njengenkinobho yamandla ekhompyutheni.
Ku-CFL, amandla kagesi ageleza phakathi kwama-electrode ekugcineni ngakunye kwethumbu eliqukethe amagesi. Lokhu kusabela kuveza ukukhanya nokushisa kwe-ultraviolet (UV). Ukukhanya kwe-UV kuguqulwa kube ukukhanya okubonakalayo lapho kushaya ingubo ye-phosphor ngaphakathi kwesibani.
Izibani ze-incandescent zikhiqiza ukukhanya kusetshenziswa ugesi ukufudumeza intambo yensimbi kuze kube yilapho iba “mhlophe” ngokushisa noma kuthiwa i-incandesce. Ngenxa yalokho, ama-incandescent bulbs akhipha amandla awo angama-90% njengokushisa.
Isikhathi Iposi: Nov-09-2020