They are Photo periods. F1 photo-auto crosses don't auto but tend to flower faster than regular photo periods.
ok, way late to the party...as uzual but me confuzzled...are theze auotz, or -? i'd like to assume becuz of the word "fastflowering" that they are, lol, but hey, me a bit slow on the uptake sumtimez, so... and, are they indica dom-? if the answer to both is yes, then by all meanz, toss me name in the ol' hat plz, ty ppp