If you grow it really well: 4 oz. If not: Less than an oz. For a first time grow you should expect an oz at most. Don't get yourself thinking you're gonna grow a half lb monster on your first grow. It takes practice.
yea i curently have 8 plants under a 600watt hps
and there coming nicely
a month and a half and ill have bud to smoke pretty soon since they will be curing
this is my 3rd grow for myself
the 2 first one was not good but still i hate some buds !
just didnt yeild much
had some root bound problem from start to finish
=/