Markshomegrown
Well-Known Member
7x7= 49ft2I cover 7x7 with two 600 hps open bulbs I used to cover 6x 6 with 1000
mine is a suggestion based on trial and error
But I’m the “know it all”
1200w / 49 = 24.4watts/ft2
I didn't know a 600w hps was that effective, why use LEDS?
I thought 40-50 watts/ft2 was about right for a 600w hps.