An electric mosquito killer is a device designed to attract and kill mosquitoes and other flying insects. These devices are commonly used in homes, businesses, and outdoor spaces to reduce the nuisance of mosquitoes and to help prevent the spread of mosquito related diseases. The basic principle behind electric mosquito killers involves using ultraviolet (UV) light to attract mosquitoes and other flying insects. The UV light mimics the wavelengths of light that attract these insects. When mosquitoes are drawn to the light, they come into contact with an electrified grid or surface, which delivers a shock that kills them.