Visible light (wavelength 400-700nm), the equivalent of the blue, green, yellow and red, also known as PAR, for photosynthesis.The active area is the most important visible part of the plants use for photosynthesis. Blue and red is the most important part in the PAR spectral band, because the riboflavin in plants can effectively absorb the light of this part, while the green is not easy to be absorbed.
So normal led could be usefull to your plant for seeding,growing and flowering.
Ratio between red and blue depends on your require.Conventional ratio (red:blue) 7:2

Snake，do you have E-mail,Skipe or something like that?