Weak lighting during early flower kill yield?

Hello. Your plants will do well from here. I have a light mover, and I have 1 400 watt light until the 3rd week of flowering. Then, I do my only defoliation and I add another 400 watt light. It seems that the more light a bud site get the bigger the buds. So you have set your bud sites. Now you need to do a defoliation. Any branch or leaf that is growing down gets cut off. Open up the middle for good air circulation and any fan leaves blocking light from getting to the lower sites. You need to leave some fan leaves, don't take them all. Good Luck. Chuck.