From my understanding the Dual arc is better because it helps in the transitioning of the plant from MH (Metal Halide) too flowering (HPS)..(It has both charactoristics). They do run hot though.
What are the benifits of the dual arc? I have Pineapple Express going and the short and bushy so I was thinking I need more lumens to get depth to the lower branches
Dutch passion feminized white widow.... fuckin crystals everywhere!! I will def post pics when I start flowering in a few weeks.... 4 weeks in and my buds are bigger than all theses 400w and 600w 8th week of flowering pictures haahaha.. been growing this strain for many many years..