I grow peppers, basil, cilantro, and different flowers all the time. I use halide in order to do most of it. Yet, a high pressure sodium would work even better due to the flowering plants. The only problem is that if it's too warm lettuce starts to bolt and flower. I also suggest using tomato hybrids that don't branch out and run as many vines. Find something that stays bushy. YOu can do spinach too.