it looks like a veg CFL from the pic so it's good until you start flowering. That's a good distance, if you put your finger at leaf level and feel confortable than the plant will also feel that way. Now, the plant will most likely boost growth, so keep an eye on it so that it won't grow into the light as that will burn it. If you want, click the link in my signature and there I have many pics of my grow setup. You can get an idea there on how I use my lights. When you will flower, just go to the store and get some 2700K CFLs. They have a more red/orange spectrum and you will be able to actually see that. In my grow I use a mix of them, but still I alternate from veg to flower. Right now I'm using 3 veg and 1 flower lights, and when I'll flower I'll use 3 flower and one veg light