Many sophisticated growers shun fluorescent lighting after they discover the efficacy of high pressure sodium and metal halide lighting. But the best growers know that there is always a place for fluorescent lighting in a grow room. In most growing operations, metal halide light bulbs are the workhorses, usually on for 16-24 hours a day during the plant’s vegetative stage to promote a healthy branch system and foliage that increases plant metabolism and will ultimately lead to a bigger pla Finish Reading this Post