what doesn't make sense is why try to simulate the sun when you're already changing
the spectrum output with the purple (not pink) tube?
the bio tropic seems perfect by itself since plants get what they need at the peaks as
well as supplementary wavelengths
i just think the white is pretty much useless since it spikes up in the green
i would use the blue and bio tropic for veg and then all bio tropic for flowering
you'll see once you read the wavelength analysis on this site that retails them from the UK;
Stuff-U-Like Mind Shop.