hey thanks,your info really helped me out alot,but i have added up my lumens and i have 11,100 lumens so that should be ok for thats box and just 2 plants,but like you said i only vegged for 2 weeks because i hag to worry about height and all that shit,when they were finished they wasnt even 2 foot tall so maybe thats the prob..ill have to try them lights in my small closet with 2 or three plants so i can let em get bigger and hope like hell for a better yeild.so thanks alot for your input man it helped me out alot.