Couldn't say, my ballast already had an ignitor in it, maybe your's does as well, and the 2 are cancelling each other out?
If it's all right though, chances are its a wiring issue.
Mole2k4 Reviewed by Mole2k4 on . Help! Did I buy the wrong igniter/ballast? Hello! Please take a look at the igniter and ballast here. I could not get them to work together, along with a 400W SON-E bulb. If someone would be so gentle to explain me if I bought something wrong? Cause the schematics differ, and I suspect that the ballast is of a wrong type. Help me pleeeease!! Thanks! :confused: Rating: 5