AIWOTOWOW Home Indoor Electronic Insect Killer for Bug Zapper Fly Swatter Mosquito Killer Lamp Eliminates All Flying Pests (Gray) The zapper emits a 365nm UV wavelength light that is a magnet for flying insects; when they get close they get zapped.If you put honey or candy into the lanterns, will trap more mosquitoes flies No harm or damage to people or the environment with a chemical and smell free solution Protective mesh screen separates you from the electric grill so you don't get shocked Detachable and washable collection tray and custom-made brush makes cleaning easy . Insect Killers can be put anywhere - stand it on its own or hang by the detachable chain Light bulb : Any issues just tell us,then we can check for you.And you need to place the lamp in 1 meter high position, turn on it and let it be alone in the dark room. Just follow the user instruction