I was going to buy the Hydrofarm 4ft. Grow Light Setup on Amazon..but the downside is it only comes with one light. I see people using shop lights, but I have NO idea what to do. There are sites that show you how to build your own setup, but if I can just use the light and hang it somewhere, I'd rather do that.
Question is, do I need a setup or can I just hang it somewhere. I know it sounds dumb, but I just want to make sure. Also, do I NEED a heating mat?