I have not grown out Nirvana's NL since about '03 or '04. Back then it was marketed as "Northern Lights Pure Indica"
Nowadays I see they call it Northern Light.
Anyway, NL was one of my favorite Nirvana strains. I grew it many times. One of the very best versions of NL that I ever grew. The short, squat Christmas tree shaped plants were my favorite. Really tasty and potent stony buds.
I don't know if the currently offered NL is the same, but it gets my vote!