three og kush not getting enough light?

got three og kush 11 days into flowering looking healthy but the bottoms arnt getting enough of the 600w hps there in a 3ft by 3ft by 9ft cupboard the lights say 2 - 2 nhalf ft away from them as they dont like heat much, the bottom third isnt getting enough light any tips guys plz

try scrog? But im not sure how well that would work out since your 11 days in. I believe it should work though. But the only thing I can see working is if your scrog them. When i grew my 4 plants regular/ tree style I had the same problem. Light was too far from the bottom buds and only REALLY developing the main cola

Mylar? White paint? It will help if you don't have it already. Supplemental lights cfl's might be an option. You might be forced to prune a little bit here and there or you could try a 1/2 harvest. Harvest the upper half, and let the bottom go for a couple more weeks in flower.

Pictures of the set up but yeah cfl`s hell even them crappy red and blue cheap`o led panels will help for side lighting on the lower branches

Tricky without seeing the set up.

I always chop at least a quarter of the bottom growth. That way the plant concetrates on building nice top colas. All trimming should be done within the first 2 weeks of flower. You stil have time. Good luck!