Izindwangu ezikhazimulayo izindwangu ezinomphumela okhazimulayo osukela ekuboniseni umphumela wemibala emibili ukuya ekubukekeni kombala wothingo. Ngokuvamile zenziwe ngezintambo zensimbi, i-fiber optics, noma izinto ezifanayo ezibonisa ukukhanya emuva, okudala umphumela ocwebezelayo oyingqayizivele.
Indwangu elukiwe yensimbi: Yenziwa ngokuluka imicu yensimbi (njengesiliva, ithusi, igolide, njll.) ibe yindwangu. Uma ivezwa ekukhanyeni, le ndwangu ikhombisa i-metallic sheen ekhanyayo.
Indwangu ye-Fiber Optic: Lokhu kutholakala ngokuluka imicu ye-optical ibe yindwangu. Ibonakala ngokuba nesisindo esincane futhi ikhiqiza imiphumela ebukhali ye-flash, iyenze ilungele ukusetshenziswa ekukhiqizeni imikhiqizo efana nezingubo ezisezingeni eliphezulu nezikhwama.
Ngokuvamile, izindwangu ezikhazimulayo seziphenduke isithandwa esisha semboni yezemfashini ngenxa yemiphumela yazo eyingqayizivele ecwebezelayo kanye nohlu olubanzi lwezicelo (njengemfashini, umhlobiso wesiteji, njll.).