So I downloaded this book - Canabis growing for Dummies. I have almost studied all of it. And I am now working on my growbox plan. My plan is to grow 4 plants in it and I was wondering about wattage. In book it says:
Somehow I dont think that one 400w bulb would be okey with 4 plants.A very rough approximation of the wattage needed for a given number of moderately sized (3-4 ft tall) plants is: 1-2 plants: 250 watts 3-4 plants: 400 watts 5-6 plants: 600 watt 7-10 plants: 1000 watts