depends on the strain. a sativa more around 2 oz to 2.5oz., dense indicas or hybrids like master or sky or bluberry or lavender. around 1oz to 1.5oz. or kind of fluffy indicas or hybrids like afghani's or hindu skunk. I pull about 1 oz. I veg for 3 to 4 weeks. I try and keep it perpetual so I have a batch every 4 weeks. I flower in 3 gal pots. One of my buddies veg's for 2 months and lets his get from 4 to 5 feet. he does mainly indicas in 5 gal pots. and he pulls anywhere from 2oz to 4oz.
I'm using a 1000w with an eye hortilux bulb