well to be honest i dont think it makes a huge difference with what colour you use there are reccomended ones for the stages as they best represent the natural light conditions for that season
either way i have both a red and blue on mine through out both veg and flower
oh and in respect to what the thread was originally about i emailed femaleseeds.nl and they got back to me and said that the plants can be flowered from one week from germination but due to my low light levels they recomend giving them 2 - 3 weeks veg and to top/prune them to get a better result but they said it will work fine either way
there coming on well so far they already have secondry nodes coming through at two weeks from germ now
il put a update on seperate thread with pics soon so peps can follow rest of the grow along with my other plants untill they finish
look out for it