Hunting pesky insects such as flies, definitely keeps you moving. Yet it can become very frustrating, as the flies tend to not cooperate. Bug zappers are the best possible solution. By using UV light, the fly gets drawn to the light. Unfortunately (well...) the fly will never actually reach the UV light, as it is engulfed with an electric grid. Depending on the size of the bug zapper, the voltage also varies. The fly will be electrocuted by the electric grid, and then end up in the disposal drawer. By emptying this drawer frequently, you will keep both the bug zapper and the environment neat and clean.