First off, it is a much cheaper solution than a dedicated night vision scope. Plenty of range for my 22, with the added flash light even more. NOTE- BATTERIES SOLD SEPARATELY. I didn't pay attention and had to wait to get batteries before I could try it out.Take a good look at the diagrams, there are zero directions. For the small objective on my 22 scope, this is hard to fit. They send it with some tape to put around the scope- in a normal setting that would be to keep the scope from getting scratched but with a small scope, you have to wrap a lot on it. All in all, I am happy with the purchase and glad I got it.