Ukukhenkceza okugqunyiweyo okanye okufakwe umbala oneempawu zokukhanya okubonakalayo kobunye ubude bamandla kwaye bubonakalisa kwabanye.Iingubo eziqhelekileyo ezikhethiweyo ezibonakalayo ziselubala ekukhanyeni okubonakalayo kwaye zibonakalisa amaza amafutshane kunye nemitha ye-infrared emide.