Anyone have any opinion about a few battery operated black lights I have seen on the market? Here is what I want to do. I have white table cloths that will glow under black lights. I did check that. I want to put a black light under the table to have the table cloth glow. So, since I don't want any wires running everywhere, I was thinking about the battery operated ones. I am wondering if they are strong enough and since they are a kind of short bar type style, I was wondering if I would get an overall glow around the whole skirt. I have to order them, I haven't seen any in a store so I was hoping someone had an opinion before I ordered.