PacMan can ferment dawn into the mid 40s. The worry I have with these other yeasts that people say are PacMan, but don't actually say so, is that they might not be exactly the same, and not as versatile as the original.
I use PacMan year-round for my American Ales. I brew in my basement, and in summer I'm fermenting it up to 72 F in the summer (in a swamp cooler/water bath to minimize heat generation, down too the mid to high 50s in winter. A great yeast across the whole range. Using a yeast that was not labeled PacMan, I would worry that it might not be as good across the whole temp range that I need.