Yeah i actually am pretty satisfied with this light.. i mean for $120 it did well imo.. and the reason i went w it was because i liked the shape for closet it just seemed to fit for me lol
Keep them close, I think light is your limiting factor here. See how there V near the light, and as you go down the plant the leaf gets much more flat? That's natural under these kinds of conditions, but it' a result of the intensity of the light, and those V notches produce growth, because the leaves are reacting to the light intensity.
I suspect that light drops off rapidly, because of the power output. If you download the lumen app on your cellphone, you can measure the light output, that will help you position them better.