Ukwelashwa ngokukhanya OKUBOMVU kuyasebenza futhi akucaciswanga kuphela ezifweni zesikhumba, ngoba lokhu kungasebenza kangcono kwezinye izinkinga zempilo ezimbalwa. Kubalulekile ukwaziwa ukuthi yiziphi izimiso noma imithetho lokhu kwelashwa kusekelwe kuyo, ngoba lokhu kuzovumela wonke umuntu ukusebenza kahle, ukusebenza kanye nemiphumela yokwelapha ukukhanya okubomvu. Ukukhanya kwe-infrared kusetshenziswa kulokhu kwelashwa okunobude obukhulu beza nobukhulu obukhulu. Emazweni aseNtshonalanga, odokotela bavame ukusebenzisa le ndlela yokwelapha ukwelapha ukuphazamiseka kokulala, ukucindezeleka kwengqondo nezinye izifo. Isimiso sokwelapha ukukhanya okubomvu asicacisi kangako, ngoba sihluke ngokuphelele kwezinye izindlela zokwelapha ezinemibala esetshenziswa emzimbeni womuntu.
Umgomo okusekelwe kuwo ukwelapha ukukhanya okubomvu kuzoba nezinyathelo ezithile. Okokuqala, lapho imishayo ye-infrared ikhishwa emthonjeni onamandla, khona-ke le misebe ye-infrared izongena ngokujulile esikhumbeni somuntu kuze kufike ku-8 kuya ku-10 mm. Okwesibili, le misebe yokukhanya izophinde ilawule ukujikeleza kwegazi futhi kamuva le izolapha izindawo ezinesifo ngokushesha. Phakathi naleso sikhathi, amangqamuzana esikhumba awonakele abuyiselwa futhi aphulukiswe ngokuphelele. Kodwa-ke, kungase kube nemiphumela engemihle engavamile futhi embalwa evamile iziguli ezingase zibe nayo phakathi nezikhathi zokwelashwa ezivamile. Kusebenza kahle kakhulu ukukhulula ubuhlungu obukhulu nobungapheli, ukuvuvukala nokungezwani komzimba nesikhumba.