Tyson: I grow many South African bulbs under lights in the basement. I use either a metal halide HID or a sodium HID. The sodium has an orange color that can made the flowers look off color. I run the light twelve hours per day and use a small fan to provide some air movement. A would question the effort to continue to grow the amaryllis, a rest period can be necessary to induce flowering. I place my amaryllis in the basement in a dark spot and withhold water and give a drink only when I see the emergence of a flower spike. Arnold