Igumbi lovavanyo lokuguga le-UV lisetyenziswa ikakhulu ukulinganisa umonakalo welanga lendalo, ukufuma, kunye nobushushu kwizinto eziphathekayo.Ukuguga kwezinto kubandakanya ukufiphala, ukulahleka kweglosi, ukuxobuka, ukutyunyuzwa, ukunciphisa amandla, ukuqhekeka, kunye ne-oxidation.Ngokulinganisa ukukhanya kwelanga, ukujiya, kunye nokufuma kwendalo...
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