A bug zapper, Zap Zone Defender Device more formally known as an electrical discharge insect management system, electric insect killer or (insect) electrocutor lure, is a system that attracts and kills flying insects which are attracted by mild. A gentle source attracts insects to an electrical grid, where they are electrocuted by touching two wires with a high voltage between them. The name comes from the characteristic onomatopoeic "Zap Zone Defender Device" sound produced when an insect is electrocuted. How Does a Bug Zapper Work? Inside Poundland's electric fly zapper bat. Do bug zappers actually work? Bug zappers are often housed in a protective cage of plastic or grounded metallic bars to stop individuals or larger animals from touching the high voltage grid. A light supply is fitted inside, usually a fluorescent lamp designed to emit each seen and ultraviolet light, which is visible to insects and attracts a wide range of them. Newer fashions now use long-life LEDs to provide the light. The sunshine supply is surrounded by a pair of interleaved naked wire grids or helices.

The gap between adjoining wires is usually about 2 mm (0.079 in). A high-voltage power supply powered by wall energy is used, which may be a easy transformerless voltage multiplier circuit made with diodes and capacitors which can generate a voltage of 2 kilovolts or more. That is high sufficient to conduct by the physique of an insect which bridges the two grids, but not high enough to spark throughout the air gap. Enough electric present flows by means of the small body of the insect to heat it to a excessive temperature. The impedance of the facility provide and the arrangement of the grid is such that it can't drive a dangerous present via the body of a human. Many bug zappers are fitted with trays that gather the electrocuted insects