Originally Posted by Jani
a ballast is a ballast is a ballast.
color temp is bulb specific.
if you need a replacement, stick with hella, phillips, matsushita, or any other oem brand
ballest and the ignitor are matched pairs if you have 2 diffrent brands if ballest you cannot swap them if they are the same brand then it's ok to swap ,but swap the buld out first as it's most likely the problem as if it doesn't want to start up right the ballect will shut off to protect itself from damage.