Interestingly, unlike in Europe and North America, I have seen that Japan in particular has marketed most of its medium and high wattage high pressure sodium lamps and metal halide lamps as direct retrofit lamps for mercury vapor ballasts, which certainly helps reduce the likelihood of mismatching between lamps and ballasts as long as the wattage matches or is close enough such as 400W quartz metal halide retrofit lamps being designed for 400W mercury vapor ballasts or 360W high pressure sodium retrofit lamps designed for 400W mercury vapor ballasts.
Even though the information I explained above is largely true for many Japanese HID lamps, I am also aware of some Japanese high pressure sodium lamps and metal halide lamps being designed for dedicated ballasts. Dedicated ballast high pressure sodium and metal halide lamps tend to be more of a thing for low wattage lamps and sometimes for high wattage quartz metal halide lamps sold there. I have read about dedicated ballast medium wattage high pressure sodium and metal halide lamps being sold in Japan, but they tend to be less common.
So the Guideway is the only roadway model left that's sold in the US?? That's extremely shocking and disappointing. Cree is on a downfall now that nearly half of their lineup has been discontinued. They need to release more new models quickly before they lose sales and pull out of the US completely...