You can just use standard florescent shop-light fixtures, too, for plants. I think I would get the full-spectrum kind, or at least the kind that produce light in both the red and blue ranges. They're inexpensive, don't produce a lot of heat, and last a long time.
I found plans online for how to use PVC pipe to build a stand for a couple of 4'shop-light fixtures. The design allows for the fixtures to be easily raised and lowered, depending on the intensity of light needed by the plants you're growing.
But maybe LED lights are better. I really don't know about them. If you type LED grow lights
into the search box at the upper left of the page, you will find that several of our members have used them. Perhaps those discussions hold some of the answers you're seeking?
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams