I got this selectable ballast, and selector is broken, I can switch it, but I don't know what selection I got. The bulk will light up on all selections. (400w radium) I want to select it at 400w and keep it there, is there a way to find out what selections I'm in. Like checking output of while it's on..... or something like that. I have multi meter I can use on it. And I can get Amp meter from work if necessary.