Ok so somewhere in this post I saw you saying something like "I thought it was a sativa but it has balls" ..... sorry if I am not exact...anyways there are male, female and hermie plants and then sativa and indica. Sativa has longer skinier leaves and lighter green color, gives energetic high and indica has fatter darker green leaves and gives more relaxing high...Thats in general, there is a couple other things about them. If its a sativa or indica, doesnt indicate if its a female or male.
I think you should rather then having all these lights invest in MH or HPS (400W my favourite) they will make the plant happier and the plant will thereafter make you happier...trust me you will get sooo much better results with these. Most growers use MH for veggie (plant needs more of a blue spectrum that it gives out) and HPS for flowering (more red spectrum)
Another thing I wanted to let you know is....DONT USE MIRACLE GROW the soil has too many nutes, every time you water it releases them...and its like feeding your plants every time with full dose of chem. nutes. Its not good. Rather get cheap soil (regular, just make sure there is no bark in it cannabis doesnt like that) and feed them yourself (recommend organic fert. cause its almost impossible to burn your plants).
About the white spots... I would think bugs. There are pesticides that are not harmfull to your plants so even if you dont think it is, I would try it...well not anymore since you are in flowering stage but maybe next time...
Hope this helps GOOD LUCK!