A question from a fellow grower:
I was wondering if a 1000w lamp is necessary, or if I could go with a 400w lamp as well? I realize that more light provides a better grow, but I was just curious? I’ll be growing the plants in my bedroom, and ventilation with a vortex fan won’t be a problem. The climate here in Hawaii is ideal I’m sure. During germination, I suppose that I’ll need to start with a makeshift CFL lamps until the plants are about 6 inches tall, and then switch to the HPS lamp. The garden supply store I visited a few days ago also recommended the halide lamps.