A
Alone
Why cant that be right? Sounds about perfect to me. 4 plants in a room. Thats about a lb per 8x8 room. Sounds right to me.What are those numbers... grams? Your best plant was just over 4 ounces? That can't be right.
I only get about 35 grams of dry bud per plant with a 600w growing 9 plants. Thats about 12 ounces per light for me.
He's useing a 1000w with only 4 plants. Should get a lb per light.
If he's truly running 5 lights in that 1 - 8x8 room than thats waaaaaaay to much light. I figured by the hallway pics that he had 3 rooms. a veg room with 1 lamp and 2 flowering rooms with 2 lamps in each. That makes sense. A 1000w lamp can do an 8x8 room just fine by itself.
So just because you have 4 1000w lamps in a 8x8 room that wont give you more yield. With 5 - 1000w lamps you can do 16 plants that big. Not 4. You can put 100 - 1000w lamps over 1 plant but your still only gonna get what the room size dictates.
If I was you.....Ide either use 2 lamps per room or get more rooms to play in. All that extra heat and power for a yield you can get off 1 lamp. Not 5.