It was a little complicated trying to assemble it on the small board. I ended up re-doing it about 5 or 6 times, probably, because I'd get too much solder here or there, miss a wire somewhere, or put an LED in backwards.The lights alternate... maybe a little fast, but I think it kinda looks cool. The attached image is the diagram I used. I added the extra LED on the bottom to light up the targeting screen. I'd give credit to whoever made it but I don't remember where I found i, so whoever it is thanks. I have a video of it on my website in the costumes section. I also have a tutorial for a fairly cheap servo set up. It is wired though, but you don't have to worry about someone else using the same radio frequency and making your RF go up/down when you are near them if you go with a remote system.
It looks like both lights are on in the picture but they aren't.