That light gets rave reviews for output and price. But no one ever mentions what diodes they use? I presently use 6 x 100watt boards, once in a while the tent will creep up to 85°, and thats with 6 drivers.
I'm still up in the air if I want to go bar light style. My last 3 grows have always had that one plant that is 20+ inches taller then the rest.