Ok. So, i haven't had cats come out to chase the light, but i know they often chase laser lights so it makes sense, especially if its zoomed in. I can tell you with my night time pesting, etc that it works nicely. We do have alot of cats around here, just havent noticed them at all coming to my light.
And any animal I have been hunting/pesting has not been bothered by the green light. I have taken note that some rats seem to notice it and "freeze", but thats just given me the extra second to pull the trigger. None have seemed afraid of the light, and none seem to be attracted by the light.
What are you going to use it for?