● E ala i le faʻaopoopoina o se ultra-lelei iridium alloys pito i luga o le electrode center ma platinum tip luga ole eleele electrode.
● Mileage drivability ma le tumau le alualu i luma e ala i le faaaogaina a sili atu centre electrode ma platinum pito.
● O le fausaga e faʻaititia le voltage e manaʻomia mo le lelei faʻateʻa.