Giesemann Ballast

I have a Gieseman Spectra 250W and had a electronic ballast die. Has anyone done a retrofit on a giesemann to use a different Brand of Ballast (i.e. IceCap) Also does the light output look different if you have two Different Ballasts?

Is there anywhere in Calgary that carries Giesemann ballasts? I know tones of stores can order them but I would like to get my light working as soon as possible.