Two 400 watt HPS.
I usually have more light,
but I am using them on my other grow.
The lights are screwed to the 2x4
which I raise and lower as needed.
I move the lights around.
I am waiting on another grower
to see if he can find us a good deal
on some 2' eight lamp T5s
I need one on each end of the tube.
I want to hang them like this.
.