Now in understand that these china made lights are not the best on the market but they are far from the only example of lights being redesigned with more and more colors of light. Would you suggest that this is only for marketing reasons? Customers demand more colors so they put them there to sell lights?

(addition talk on the white led) This will give me a much broader spectrum of light. Now I will still have a large amount of 660nm light with a smaller portion of 630nm light. In addition to that I plan on a second stage for my light consisting of UVa and 605-620nm and some deep red. Most likely 30-40 worth total(4watt(uv)30watts(610nm)6-10watts(730ish) that can be switched on around flowering time.