A bug zapper, more formally referred to as an electrical discharge insect control system, electric insect killer or (insect) electrocutor trap, is a gadget that attracts and kills flying insects that are attracted by mild. A light supply attracts insects to an electrical grid, the place they're electrocuted by touching two wires with a high voltage between them. The title comes from the characteristic onomatopoeic "Zap Zone Defender" sound produced when an insect is electrocuted. How Does a Bug Zapper Work? Inside Poundland's electric fly zapper bat. Do bug zappers really work? Bug zappers are usually housed in a protecting cage of plastic or grounded metal bars to prevent people or bigger animals from touching the excessive voltage grid. A mild supply is fitted inside, often a fluorescent lamp designed to emit both visible and ultraviolet light, which is seen to insects and attracts a variety of them. Newer models now use long-life LEDs to provide the sunshine. The sunshine supply is surrounded by a pair of interleaved bare wire grids or helices.

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