I found this awsome little set up, balast, light, reflector, bulb for 150, and another set up thats exactly the same but comes with a MH bulb and the plug that can use both for 200. Is the advantage of using the MH light during veg. really worth the extra 50 bucks? I know this is a newb question, but I'm just trying to figure this all out quickly before my little plant dies of light starvation...