LED bulb and mosquito killer 2 in 1 features; this device has 2 modes: lighting and mosquito control. If you only want to use mosquito control feature only, just flip the switch twice. No more pesticides or harmful sprays. Quickly get rid of mosquitoes, do not use sticky, messy poisons or sprays. Use this kind of energy-saving light bulb to save money for electricity, no need to buy pesticides and insect repellent.Use lightwave technology to capture mosquitoes 360 degrees so mosquitoes have nowhere to escape. Can be used indoors or outdoors in any standard lamp fixture. Widely used in verandors, porches, backyards, warehouses, garages, gardens, parks, homes, living rooms, kitchens, offices, hotels, restaurants, schools etc.