Ngokuthuthuka nokuthuthuka komphakathi, izindaba zamandla kanye nezemvelo ziye zanda kakhulu emhlabeni. Ukongiwa kwamandla kanye nokuvikelwa kwemvelo sekuya ngokuya kuba umfutho oyinhloko wenqubekelaphambili yomphakathi. Empilweni yabantu yansuku zonke, isidingo samandla okukhanyisa sibanga ingxenye enkulu kakhulu yengqikithi yamandla asetshenziswayo, kodwa izindlela zokukhanyisa zendabuko ezikhona zinezici ezifana nokusetshenziswa kwamandla amakhulu, ukuphila okufushane kwenkonzo, ukusebenza kahle kokuguqulwa okuphansi kanye nokungcoliswa kwemvelo, okungewona. ngokuhambisana nenjongo yokonga amandla nokuvikela imvelo emphakathini wanamuhla, Ngakho-ke, imodi yokukhanyisa entsha ehlangabezana nezidingo zokuthuthukiswa komphakathi iyadingeka ukuze kuthathelwe indawo imodi yokukhanyisa yendabuko.

Ngemizamo eqhubekayo yabacwaningi, imodi yokukhanyisa eluhlaza enempilo yesevisi ende, ukusebenza kahle kokuguqulwa kanye nokungcoliswa kwemvelo okuphansi, okuyi-semiconductor white light emitting diode (I-WLED), isilungisiwe. Uma kuqhathaniswa nemodi yokukhanyisa yendabuko, i-WLED inezinzuzo zokusebenza kahle kakhulu, akukho ukungcoliswa kwe-mercury, ukukhishwa kwekhabhoni ephansi, impilo ende yesevisi, ivolumu encane nokonga amandla, Lokhu kuyenza isetshenziswe kabanzi kwezokuthutha, isibonisi sokukhanyisa, amadivaysi ezokwelapha kanye nemikhiqizo kagesi.

Ngesikhathi esifanayo,I-LEDiye yaqashelwa njengomthombo wokukhanya omusha obaluleke kakhulu ekhulwini lama-21. Ngaphansi kwezimo zokukhanyisa ezifanayo, ukusetshenziswa kwamandla kwe-WLED kulingana nama-50% wamalambu e-fluorescent kanye no-20% walawo amalambu e-incandescent. Njengamanje, ukusetshenziswa kwamandla okukhanyisa okuvamile emhlabeni jikelele kubala cishe u-13% wawo wonke amandla asetshenziswa emhlabeni. Uma i-WLED isetshenziselwa ukumiselela umthombo wokukhanyisa ovamile womhlaba, ukusetshenziswa kwamandla kuzoncishiswa cishe ngohhafu, ngomphumela omangalisayo wokonga amandla kanye nezinzuzo zezomnotho ezihlosiwe.

Njengamanje, i-white light emitting diode (WLED), eyaziwa ngokuthi idivayisi yokukhanyisa isizukulwane sesine, idonse ukunaka okukhulu ngenxa yokusebenza kwayo okuhle kakhulu. Abantu baye baqinisa kancane kancane ucwaningo nge-LED emhlophe, futhi imishini yayo isetshenziswa kabanzi emikhakheni eminingi efana nokubonisa nokukhanyisa.

Ngo-1993, ubuchwepheshe be-Gan blue light emitting diode (LED) benza inqubekelaphambili okokuqala ngqa, okwakhuthaza ukuthuthukiswa kwe-LED. Ekuqaleni, abacwaningi basebenzisa i-Gan njengomthombo wokukhanya okuluhlaza okwesibhakabhaka futhi baqaphela ukuphuma kokukhanya okumhlophe kokukodwa okuholwa ngokusebenzisa indlela yokuguqula i-phosphor, eyasheshisa ijubane le-LED engena endaweni yokukhanyisa.

Ukusetshenziswa okukhulu kwe-WLED kusemkhakheni wokukhanyisa kwasendlini, kodwa ngokwesimo samanje socwaningo, i-WLED isenezinkinga ezinkulu. Ukuze senze i-WLED ingene empilweni yethu ngokushesha ngangokunokwenzeka, sidinga ukuthuthukisa njalo futhi sithuthukise ukusebenza kahle kwayo okukhanyayo, ukunikezwa kombala nempilo yesevisi. Nakuba umthombo wokukhanya we-LED wamanje awukwazi ukushintsha ngokuphelele umthombo wokukhanya wendabuko osetshenziswa abantu, ngokuthuthukiswa kwesayensi nobuchwepheshe, izibani ze-LED zizothandwa kakhulu.