I had 8 plants under a 330watt LED, but that was noticably too many plants, not enough light. So i bought a 1000watt hps and set it up. I took the four worst looking of my plants out of the 8, and put them under the hps. Now the hps look like they are going to easily yeild more, bigger buds, really stinky, and dense. But the LED grows that strait medical looking bud. Not as much, but looks and smells so amazing that im keeping it for my personals. They are two grows in seperate rooms. I honestly prefer hps flowering, and LED for veg. Your plants with bee done before you know it, not to mention the A grade.