Yeild

what would a normal yeild be for 4 plants that are about 3ft. tall, 2ft. wide

what light do you have and a little more info maybe the strain

10 pounds+

four sevendy watt metal halite a 70watt high pressure sodium and 2 100 watt grow bulbs..and i think there from a stash but i dunno heres some pics wat strain des it look like to you

well its hard to say but with those lights it is going to be airy,
My guess if everything goes perfect 3 ounce's
Good Luck With Your Grow