In short hun... No..
Those are to increase spectrum and I have yet in at least 6 years of helping people, seen ANYONE do a successful grow with just 1 or two of those... They are great for side-lighting or to suppliant CFL lights...
IMO- You'd be better off with a T5 or 400w HPS...
What medium you growing in? Nutes & Suppliments? What strain you going with? Containers/system???
More info so we can help ay more!