Unyango lokukhanya kwe-LED kukukhanya okusisigxina kwe-diode-low-energy light ukuphumla kunye nokomeleza i-capillary encinci yegazi, ukukhawulezisa ukujikeleza kwegazi.Inokukhulula ukuqina kwemisipha, ukudinwa, iintlungu kunye nokukhuthaza ukujikeleza kwe-blod.