So I was browsing at 48" fixtures, mainly the Nova Extreme 4 T5 HO. Then I stumbled across the dual satellite. I didn't pay it much attention at first, then I noticed it puts out 48 more total watts than the Nova Extreme and is significantly cheaper? Anyone know why? I'm just wondering how it is inferior to the Nova as it seems like the far better bang for the buck deal. I know it's CF as opposed to T5 HO.