It's not if the area is well lit, it's the intensity and quality of the light. Lighting is one of the bigger problems for your yield. Optimum lighting conditions are growing the veg period with a Metal Halide, you could probably get away with one 600 watt light of that. Then for flowering, you'd want a same wattage High Pressure Sodium, for example.


And yeah, follow the tips above too.



note: these lights are not NECCASSARY, they are just optimum for good yield and quality.