Ok I know most growers hate them but here's my situation. The electrical costs on the Coast are outrageous. Last grow with 4, 600s - 2 to a dual Raptor hood over a 4x8 tray ran over 400$/mo!! during the Summer when we get dinged with higher rates. Its somewhat better now in the Fall. This time I'm using 2, 600s in 1 Raptor with a mover; using the super lumen setting that's well over 1200watts over 20 sq feet/ 60 watts per foot. Not trying to cover the full tray just want an extra foot on each end, like a 4x5 or 4x6 with 14 Purple Cadillacs from DHN. They are mostly Indicas and shouldn't get over 2' tall with most of the bud sites on the same level so penetration isn't an issue. I'm planning on a 1 to 1.5 travel.