I was also trying to explain the color or deficiency as some call it. The v1 and v2s almost always came out pale green, not yellow. The rspecs are yellow from the start but not pale or greenish yellow. Its a dark yellow. A week after being under the rspec it turned this color. It took me a lot of power to not change anything because i thought it needed N or had too much water, ph problems. Its not that type of yellowing, its literally exactly like watching a japanese maple tree go from green-yellow-red. This photos from a couple weeks ago. Its about a week too early for the leaves to turn and fall off, but they also yellowed much earlier in the grow. After that is the same clone line grown under v2s, 0 purpling. Im not knocking the rspec but its different than the v2, i mean i mount these to the top at 60inches, then i put the plants in when the canopy is at around 30 inches. Im very surprised to get bleaching, i also rotate the plants a quarter turn every day. Where i could see the rspec really filling a niche is 12/12 from seed and autos but with my photoperiod plants it seems to be throwing them a curveball of sorts. Perfect for a fast little indica, mines a sativa dominat hybrid and its just not going to mature fast enough under these to get to its full potential like it would under the v2. I think once it starts making the anthocyanins its just not going to be able to do photosynthesis as well. The rspecs faster, better looking and more potent looking bud but at the same time its viney, harder to trim, slower to fully mature some plants. The 3000k v2 is just a reliable general purpose producer for me, never had any issues other than some occasional fluffy bud.