Hey Reefvet,
I share your skepticism (which is why I posted in the first place). That said, are you aware of any other recent such charts that have been done? I would love to see a recent chart that lines up the LED vendors. I also am not driven by brand names - I am looking for the best value. To me that means the top LED system to grow SPS for the best total cost of ownership (initial price + repairs + ongoing power costs). I care about the science (spectrum, par/pur, lenses/diffusion, natural colour blending, etc.). So that would include Radeon Pro, Hydra 52, Kessil + other vendors to round things out.
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