Okay, this thing took a lot of tinkering just to power it up. It takes a 9 volt AA battery (is there even such a thing?), so of course a traditional AA would not work. Fine, I'll hook up a power supply. Nope. Traditional power supplies are pin negative and this one is pin positive. Fortunately I did happen to have one of those and finally got it to light up. I haven't hooked it up yet, so I can't really comment on performance. Just keep in mind you will also need a pin positive barrel-type power supply to do anything with it. And you better hope the barrel fits!