technically speaking, red vs blue wavelengths impact what the plant does -- but only very slightly and relative to much larger factors like genetics.
more is generally better... light intensity is a much more important factor than some "designer" SFD (spectrum flux density, fancy way to quickly say the proportion of each wavelength that make up the total of white light radiated from the diodes - e.g. warm vs cold etc... more red and blue than geen for grow lights and so on...)
yes, blue causes more axillary growth (side branching) but if you take 2 clones of exact same lanky plant that doesn't side branch much and compare both under a very red-heavy vs very blue-heavy the differences will be minimal... some statistically significant difference may occur, but that doesn't mean it is a big difference...merely bigger than normal volatility.
So, as log as not near or above maximum DLI... more is always better. (Daily light integral) .. for ambient co2, your max will be near 35-40DLI. google for info and you can reduce trial and error to find best happyzone for your light. umol/s / m^2 = ppfd.. reference PPFD with hours of use on a DLI table and you have your resulting DLI. Google image will have a table for you. umol/s shuld be a specification for any reputable grow light... some manufacturers lie through their teeth and 2x on sunday about it, though.