Quote Originally Posted by tank18
hey thanks guys,i think i seen something on here about ,having 5000 lumen per plant to get a good harvest,so what do ya think about 20,000 lumens,and by the way i will call a good harvest an ounce or two because my last grow i only yeilded abou a half ounce out of both plants i had.:rastasmoke:
20k lumens would be ideal, even more would be better.. but just so you know it is possible to grow at less than 5k lumens per sqft. It's just not 'ideal'.

An ounce per plant is definitely doable under CFL's if you take some time out to really read and learn your grow.