Ileyibhile yesatifikethi kubalandeli bobungqina bokudubula ibonisa ukukala kwe-380V, kodwa aba balandeli banezinto ezininzi, ukulungelelaniswa ne-220V, 110V, kunye nolungelelwaniso lwe-36V. Ngezicelo zemigodi, abalandeli bobungqina bokudubula bayakwazi ukufikelela kwi-114V, ngelixa iimodeli zokuthumela ngaphandle zinokuyilwa ukuba zikwazi ukuphatha kangange-400V.
Kumxholo wemigodi, Abalandeli bobungqina bokudubula benziwe ukuba baxhathise ukuya kuthi ga kwi-1140V, ebonisa ukomelela kwabo. Iintlobo ezithumela ngaphandle kwaba balandeli ziyakwazi ukusebenza ngokufanelekileyo kwi-400V.