I think the best you can hope for is 600 grams per light not 500 grams per plant. 1 gram per watt is phenomenal growth and that is what a grower can get with optimal conditions. I wish per plant!
Thanks for answer but a see one pic and i was very impression i see very big plant and very little light this is the link .http://www.cannabisculture.com/articles/1378.html
I grow in soli and i have resul about gram per wat but i want to grow in aeroponic for more yeld.