That is a perfectly good light and quite honestly a really good deal from what I can tell. I was trying to see if it was capable of also running a Metal Halide bulb but I could not tell from anything I saw, so it looks like it is just HPS. However I can't recall ever seeing an HPS ballast that didn't run MH as well. At any rate you can defintely use these very effectively for growing your plants all the way from start to finish. How many plants are you growing under these 2 lights?