knna said:If you have limited the number of plants to grow, choose to grow tree style (long veg period). For tree style growing, vertical lighting works best, being the ideal a huge top lighting and some less watts lamps in vertical. I think on a 1000w on top with a double parabolic reflector (adjust a wing style), in order to get a larger footprint wich cover the six plants and 2 600w in vertical, each surrounded by three plants (forming VΛ).