^ Bree is right (sigh all ladies want it bigger... )

Not to mention that 150's do not penetrate very far into the canopy at all. I used my (now) mommy box to flower when I started - 30"x16"x59", 2 plants, 150WHPS and 70WMH (220 W total) and anything beneath the top ~6-8 inches or so was real fluffy. total yield off 2 plants averaged ~ 3-4 oz. A single 250W HPS would have penetrated much better, and been less heat to deal with and probably could have gotten closer to 6+ oz per harvest with training/lst or a SCRoG/SoG grow