I want the 400w i just worried my box was too small here is the setup i was looking to buy
400W:
Discount Grow Lights from Hidhut - - 400W HPS Digital Ballast, Bulb and Glass Tube Reflector Combo
with the TD-150:
Soler & Palau Commercial Centrifugal, Axial, Propeller, Exhaust and Supply Fans...