D.H.S. Heavy Duty Leveler Legs w/ Lock Nuts - 2,000 Lb. Capacity Furniture Leveling Feet - Adjusts from 0" to 2-1/2" - 2 Pcs. Advanced technology: LED bulbs and mosquito killer 3 in 1 features, this device has 3 modes: lighting, lighting and bug fire extinguisher, bug killer. If you only want to use the zapper feature, just flip the switch twice. Safety Assurance: No more pesticides or harmful sprays. Quickly get rid of mosquitoes, do not sticky, messy poisons or sprays. Very economical: use this kind of energy-saving light bulb to save money for electricity, do not need to buy pesticides and insect repellent Electrostatic capture: Use lightwave technology to capture mosquitoes 360 degrees so mosquitoes have nowhere to escape Wide range of applications: Can be used indoors or outdoors in any standard lamp fixture. Widely used in decks, patios, porches, backyards, warehouses, garages, gardens, parks, homes, living rooms, kitchens, offices, hotels, restaurants, schools, etc.