Those LED lights are not really accepted as working yet. In other words, stick with tried and true methods, before trying experimental ones, unless you're into that sort of thing.

MH/HPS works fine, try it first. Sun Systems makes good economical lighting I am satisfied with their products.

Spend $30 on a grow bible like Cultivating Indoors by Ed Rosenthal or Jorge Cervantes' book. That is the first thing I'd buy. Now go and read all the help available to you. All your questions have been asked and answered already 500 times and it's all in SEARCH.