A bug zapper, more formally called 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 light. A mild source attracts insects to an electrical grid, the place they're electrocuted by touching two wires with a high voltage between them. The identify 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 really work? Bug zappers are usually housed in a protecting cage of plastic or grounded metallic bars to forestall folks or larger animals from touching the high voltage grid. A gentle source is fitted inside, typically a fluorescent lamp designed to emit both seen and ultraviolet mild, which is visible to insects and attracts a variety of them. Newer fashions now use lengthy-life LEDs to supply the light. The sunshine source is surrounded by a pair of interleaved naked wire grids or helices.

The distance between adjoining wires is typically about 2 mm (0.079 in). A high-voltage energy provide 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. This is high enough to conduct by means of the physique of an insect which bridges the 2 grids, but not high enough to spark across the air gap. Enough electric present flows via the small body of the insect to heat it to a high temperature. The impedance of the facility provide and the arrangement of the grid is such that it can not drive a harmful current by the physique of a human. Many bug zappers are fitted with trays that gather the electrocuted insects