What voltage this luminaire is wired up for ? I have a hunch it may have wrong ballast to use in there.
It's a tri-tap ballast. The proper 120V lead is connected, the other two leads are factory sealed and unexposed.
The fixture is brand new, complete with lamp and ballast. I have used many of this same type of fixture without any problem.
I take it nobody else has encountered this type of problem before.