Works great we have 1/3 acre and this little zapper takes care of it. Don't notice much of a change in electricity use when we operate it during the summer months. Its on the small size but covers a big area. We have a corner cul-de-sac with embankment, we hang from a tree in the middle which we noticed a big reduction in insects within a few days.  This is our 2nd year and its still going strong. We mainly use it a few days before having guests over or during the summer weekends.