How Much?!?!?!

how much weed does a bagweed plant usually yield??? the plants are three and a half weeks along... they are all 3-4 inches tall and they all have 3 and half nodes... would post pictures but my camera won't work...

outside in the ground about 3 pounds

no they are in my closet the are set on 20 hours light right now(flur lights 2 2ft 2 tube 40w each) and then when it is flowering season it will be set at 12/12 with three 75w grow lights that go in these things they look like this... they get water twice a day.. there is a fan on when the light is on... and the temp stays around 75-80 and then at night drops to 60-75... and they have 19-6-12 fert on them... they are in three 8" pot that 8" in dia....

oh then maybe a few grams dry u need monster light for monster buds

what lights would you say are the best and where would i get then and where would i get one ???