I run 5x5’s……..optic slim 650s……. That three way Spectrum control is not to be underestimated…… that light has tremendous versatility even in a 5 x 5 space it also has a 3.75 micro mule Efficiency rating in regards to their brand new Samsung v2 chips……. If you’re throwing a big stretcher no problem turn off the red and crank up the blue it’ll keep her from stretching so much……. Also has UVA and Ir diode‘s……far red boosts yeilds tremendously when supplemented alongside white and green parts of the spectrum without CO2 far red is very important……. I have my 650s 20 inches away from my tallest top….. my plant is also 36 inches tall exactly from the Coco to the top……your talking 56 inches!!! 36 of which is covered by thick ass rain forest canopy and I still have solid rocks at the trunk……. I have solid 1-2 gram buds less Than an inch away from that coco growing on parts that I’d usually Lilly pop…I didn’t this go around because I wanted to see how the 650s was at penitration……..she ssolid the entire way down….no bullshit whatsoever on her even at the trunk…..and she’s thick as fuck……because of the spectrum ratio and far red it’s able to penetrate the entire way down……I vegged her 8 weeks and 3 days then flipped……she took up my 5x5 tent (to the gills)……I don’t run co2…..it’s not about watts, it’s about spectrum ratio, always has been…..if I where u I’d go optic 650s
