320.495 grams...

no really....rly rly..


Srsly?

No, there is nobody that is going to be able to tell you this. You could grow 1, 3 foot plant or 30 small clones... i assume you are talking about flowering these plants?

How about this, 1000 watts covers about a 8x8 to 9x9 foot area... so the answer to your question is whatever you can fit in that area without crowding them together and maximizing light to all parts of the plants. Then of course there are light movers....

any one of these plants could yield nothing, 4 grams or 4 ounces... it's all dependent on you as a grower and the experience you have.


So needless to say, there's absolutely no way to say what you could yield from 3 1000 watt lights.


What do YOU think you should yield? That's a better question...