I have plenty of good led lights, but I need one to find and shoot Coyotes on my property without spooking them. Does a slip on filter work as well as a dedicated, colored LED torch for night hunting? I like the idea of buying a $6 filter for my Fenix TK30 rather that buy a $150 Wicked brand hunting light. Also, I read that green works well also, and lets you see further. Is this the case? Thanks!