Mosquitoes and flies in the halls of restaurants, bars and cafes don't promote at all to a pleasant pastime, distracting them and causing discomfort for guests. That is why in the guest areas are used insecticidal lamps, that allows to protect guests from insects. The principle of operation of insecticidal lamps is quite simple. They emit ultraviolet light of a certain wavelength, that is attractive to flies and mosquitoes, but at the same time, it is absolutely safe for humans. Insects, seeking the attracting light source emitted by the insecticidal lamp fall on the grid of the lamp which is under voltage and die from its effect. The dead flies and mosquitoes get into the tray, which may be cleansed when necessary. Insecticidal lamp for catering facilities are selected in accordance with the dimensions of guest areas, which allows to provide maximum protection. Furthermore, these devices operate effectively at any time of the day, even in daylight.