Igaraji(ucango lwegaraji lukude）ikakhulu yahlulwe kulawulo olukude, induction, umbane kunye nencwadana, kunye nocango lwegaraji olukude sisixhobo sokulawula ukude ukuvulwa nokuvalwa kocango lwegaraji. Ukuthetha jikelele,iremote yocango lwegarajiihlala ithatha isilawuli kude sikanomathotholo kwisilawuli esikude kunesilawuli kude se-infrared, kuba xa sithelekisa nesilawuli kude se-infrared esiqhele ukusetyenziswa kwizixhobo zasekhaya, isilawuli kude sikanomathotholo sinezi nzuzo zilandelayo.Isilawuli kude sikanomathotholoisebenzisa amaza erediyo ukuhambisa imiqondiso yolawulo. Iimpawu zayo azikho icala, akukho lawulo "lobuso ngobuso" kunye nomgama omde (ukuya kuthi ga kumashumi eemitha, okanye neekhilomitha ezininzi) kwaye usesichengeni sokuphazamiseka kombane. Kulula ukusebenzisa isilawuli esikude sikanomathotholo kumasimi afuna ukungena kumgama omde okanye ulawulo olungabhekiseli ngakulo, njengolawulo olukude lomnyango wegaraji, ulawulo lwamashishini, njl.
