I'm only guessing, but I'd say such a ballast would have to have some kind of memory mechanism to do that (be limited to only the first voltage applied). It would seem to me that it would be easier to just make a solid-state circuit that does constant average current over a reasonable voltage range (120 to 277 in the USA, 120 to 347 in Canada, etc) and possibly even frequency range (50 to 60 Hz or maybe even to 400 Hz). Then the voltage can change, possibly even while running.
