Red and blue mostly I think, hence purple lights, and why plants look green and not black. As I understand the variation in green light and it’s intensity muck

Red and blue mostly I think, hence purple lights, and why plants look green and not black. As I understand the variation in green light and it’s intensity mucks up photosynthesis, now if photosynthesis could be tuned to use green light too that would be handy, it’s just that evolution has a head start of billions of years. Of course though eukaryotic cells run on mitochondria, if energy could be sourced to the cell to replace the chloroplasts directly that could be one way around. But denaturing food like that could have unforeseen consequences. There was a Tommorow’s World item about making food from petrochemicals, I’m still aghast.