that looks pretty good, you could of packed them in much tighter and got a good yield
i like the idea of how close they can be put to the plants
its good for space height wise, all the new leds are hung as far away as hps now or they would cook the plants
these tubes would be good for stealth
and i seen them used with little sog plants stacked on top of each other multi level growing
making very good use of vertical height
peace