need electricians assistance, GVRD [bby]

[davefrombc]

Yes.. Primary is wall to ballast , secondary is ballast output to the fixture.
Primary = First ( input )... Secondary = second , (output )

[cyberdude47]

So in a nutshell if your not using the appropriate rated cable and connectors the conductor insulation could be leaking and causing the GFCI to sense the loss in current and trip