Well, I've noticed there are a few seeds sold/labeled such as:
Northern Light x Big Bud
Northern Light x Shiva
Northern Light x Haze

But the ones I got were simple labeled "NLX". So some sort of accidental cross pollination could be possible, then tossed in as freebies.

I can tell you that a few of the seeds look immature, and the ones I germed was 1 nice and mature, 1 semi whiteish/immature.

They are showing what could be described as new strain vigor, then again this is also my first hydro grow. From what I see though, if all goes well I'll certainly clone them and maybe if I get a male I'll generate some seed. It looks quite nice and I am absolutely not picky.