second grow opinions please

ok so im just about ready to do my second grow and i have decided to go bigger from my first grow so my new grow room is 5.5ft by 5.5ft and 7ft high im gonna be growin 6 ladies (2 white rhino 2 big bud and 2 kalashnikova ) and im wondering if my 600w dual spectrum will be enough for all or should i go with 2 400w dual spec instead any advice please

More is better. I think that might be the only hard and fast rule to growing MJ. The more light the better. Plus, you will get better coverage with 2x400 than 1x600. I'm no ezpert but I am an opinionated noobe so that's my opinion!!

I would say for the size of your room go with 2x400 but 600w is enough for six plants.
I grow six under a single 400w and they do great.