SOG grow, need help with how much lighting

Jay339

New Member
Howzit guys,I'm on my 5th grow now. But it's the first time I'm trying the SOG method. I'm growing about 20 to 25 clones that i leave to veg for 2 weeks first before i start flowering ,I have a rack with 12 x 20w (240w total) cfl bulbs at the moment, but my question is... how much extra wattage am I gonna need for a 1m x 1m area? Do I need to double that? Pls any advice will help!!!

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