You want around 4000-5000 lumens a sq. foot you have 9 sq. feet. A 400w hps puts out around 50000 lumens so a 400w hps will put you at a lil over 5k lumens a sq. foot. Height does not matter to much to the light factor. It does matter in ventilation so a 3x3x6 box will = 54 cubic feet. just example so you would want at least a 165cfm fan maybe a lil bigger for your exhaust. And usually your plant ill double in size by the end of flowering sometimes even triple. Hope that helps you alil bit:jointsmile:


~One~:rastasmoke:
~BudG~:rastasmoke::rastasmoke:
KillerBudG Reviewed by KillerBudG on . My weed WONT flower Hey I'm new here just decided to try my first grow I live in NZ so we have primo soil and sun for growing anyway I've got my plant in a 8 litre bucket growing in the window in my room it's got to about 5ft tall and has two cocalas or whatever the hell they are growing I've tried inducing bud but it just KEEPS growing soon its gonna be reaching my f**kin roof can anyone point me in the right direction? Rating: 5