so my first ever grow in a 4x4 tent. I have had 6 auto flowers finish in 12 weeks took a little longer than I expected I had then under 24 hour of LED Lighting viparspectra 600w and the meihzi 600watt.. 6 inch extractor and filter , 4 inch inline fan, and just 1 oscillating fan. I yeilded 40 gram dry off the two little ones, medium sized one I got 80 gram ! bushy trained auto I got 80 gram! other two little bushes are still finishing up ! using 500 true watts odd from blurple lights I thought was pretty good my electricity bill was £200 for 10 weeks ! 24 hours a day the tent was running ! I will post pics of dry nugs and colas later on I really can't believe I produced this amount of good quality bud , really pleased with the cheap LED lights as alot of people were putting them down to not penetrating airy fluffy buds let me tell you they have done a pretty fine job for me, as long as u open the plants up and distribute the light evenly your well away! happy growing people! thanks for your help in the past few weeks too..! much appreciated