Might as well mention I've been fiddling with the wiring and haven't actually managed to get it to work. One 15 watt bulb lights fine, but three 15 watts doesn't work right.
I've tried wiring them in a series the power wire from one going to the next to the next with a starter for each. Absolutely nothing happens. That's pretty much how the wiring diagrams say to do it. I've tried with a single starter for all 3 and they blink and try to start, but don't manage to fully start. (I haven't tried just 2 yet) I've also tried wiring all the tubes in parallel with seperate starters and only one will start at a time. I wonder if sharing the starter would work, all 3 tubes going through a single starter, hmmm, probably not.
So, either it's not going to work, which I've HAD something similar working before. Or I need some slightly different equipment.