thank you to swift grow its actually a 4x6 area aftefr it Was built AND done to cater to my area..based on ur clculations i will be around 3,750 psf......? still in optimal range tho....i have a super lumens adjust and also a digilux bulb in the 600 air cooled hood....gunna try that tomm instead of the regular 600 watt setting,,,might help a lil..?also yes i think by topping im alllowing light to penetrate deeper into each top maybe massive nugs! CAN I TRIM HER DURING FLOWEING...LITTLE BRACNHES SHOOTING FROM EVERY WHERE??