Well first a 600 will light an area arounf 3' x 3'. The next question is how many plants are you going to try to shove under the light. To get 50" plants i dont think you could fit more than about 4 plants under the light. This gives each plant about 18" x 18" of space.
Assuming you get .5 gram per watt that gives about 300g divided by 4 plants is about 75 grams per plant which is just over 2.5oz per plant.
yer gonna end up at 50 inchesok yeah im doing 4 plants but im not sure if I want to do 50 inches if it only penertrates 18 inches. im thinking about taking them out of vegg at 22 inches
it will still streatch, that will kick it in to flower faster and a mh the first 2 weeks of flower may help aswell with the streatchnot if he stops giving it nitrogen 1 week before flower lol
srry thats a little ot your cool with what yer doinwait what are you guys talking about im not sure if im going to have an mh bulb im just using the 600 watt that I got with the setup
do a S.O.Gok yeah im doing 4 plants but im not sure if I want to do 50 inches if it only penertrates 18 inches. im thinking about taking them out of vegg at 22 inches