Hi Vanduction,
I just turned on to your grow. There is a serious problem with your induction set up that may explain why they are not performing up to par.
You need to have your fan higher than your bulb these lights need a certain amount of heat to keep at full output. Any cooling of the bulb will cause the bulb to loose up to 50% of brightness after about a hour of operation. We have a lot of experience with these lights and this is one of the most common problems growers do with these bulbs. We only sell these set ups with reflectors only we don't sell just the bulb and ballast for this reason. Our reflector design is important too in keeping the bulb at the right temperature. You replied to me in another thread and told me you live in my area. Please give me a call and i can help you with your set up.