Hmm. Mine said (1) F32T8. If it says it's for two F32T8 lamps then I'd return this becuase it's useless since the ballast leads were cut too short to be any use in a 4' fixture anyways.
Can you show a pic of the ballast label? This has to be a one lamp ballast unless lithonia screwed up. If this is a two lamp F32T8 balalst, just buy another light, take out the ballast, and run four F17T8 lamps off this ballast lol.