A bug zapper, more formally referred to as an electrical discharge insect management system, electric insect killer or (insect) electrocutor lure, is a device that attracts and kills flying insects which are attracted by mild. A light supply attracts insects to an electrical grid, where they're electrocuted by touching two wires with a high voltage between them. The identify 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 actually work? Bug zappers are usually housed in a protecting cage of plastic or grounded metal bars to stop individuals or bigger animals from touching the high voltage grid. A mild supply is fitted inside, usually a fluorescent lamp designed to emit both visible and ultraviolet mild, which is seen to insects and attracts quite a lot of them. Newer models now use long-life LEDs to provide the light. The light supply is surrounded by a pair of interleaved bare wire grids or helices.
The space between adjoining wires is usually about 2 mm (0.079 in). A excessive-voltage energy provide powered by wall power is used, which could also be a easy transformerless voltage multiplier circuit made with diodes and capacitors which can generate a voltage of two kilovolts or extra. That is high enough to conduct through the body of an insect which bridges the 2 grids, but not high sufficient to spark throughout the air gap. Enough electric current flows by way of the small physique of the insect to heat it to a excessive temperature. The impedance of the ability provide and the association of the grid is such that it can't drive a dangerous current by means of the body of a human. Many bug zappers are fitted with trays that gather the electrocuted insects