I bought (actually by accident) this strip lighting from IKEA. They are small LED strips and you get four strips in a package that can be combined to make long strips or two medium or one with three and one with one, etc. They were pretty cheap, if I remember, and the other day I remembered that I had them and just fixed them inside my lights behind the bulb. I leave them one all the time because they use almost no watts, and they make a fantastic, cheap, easy to install (I used a small piece of duct tape) moonlight source.
Mike