I have an old bug zapper I want to use to make a squirrel zapper on a bird feeder. I've tried just about everything else including shooting them. New ones come along within hours. I don't want to kill them with a zapper but I wouldn't mind sending a strong message. I know these Bug Zappers are designed to fry bugs. Are they powerful enough to injure or kill a squirrel or just buzz them good. I think I read somewhere that they may be up to 3000 volts. Don't know about amps.