I have a bunch od seedlings going. My favorite one is the "Wooly Kate" tomato. See all the fuzz on the leaves. Tomatoes and Peppers and other things Cabbages and other things
To answer my own question mmmm … purple LED light on plants helps with photosynthesis… increase bushy growth and promote flower / fruiting. TADAHHHH
Thanks @Pacnorwest . I use full spectrum grow lights. When I used the red, (which I have the option to do on some grow lights that I have,) I didn't feel it enhanced growth but, instead, slowed it.