NOPEST Bug Zapper, 2 in 1 Mosquito Lamp, Electronic Fly Killer, Built in Insect Trap, Fits in 110V E26/E27 Light Bulb Socket, Suit for Indoor Outdoor Porch Patio Backyard 2 IN 1 FUNCTION & 3 MODES: 3 in 1 function of LED light bulb and bug mosquitoes killer, 3 modes you can choose through the wall switch control. Just flip the switch twice if you want the zapper function only. Mute for operation, not affecting sleep. ADVANCED TECHNOLOGY: LED Blue-violet band emits 365-420nm wavelength. This wavelength has a fatal attraction with the long-lasting stability of insects Mosquito. Not only can kill mosquitoes, but also eliminate other insects. SAFE GUARANTEE: This mosquito killer light bulb is powered by electric not as the chemical liquid. It is no radiation, non-toxic and chemical-free. Safe for human health and environment. 45  SLOPE DESIGN: Mosquitoes automatically slipping off, no need to clean up the mosquito zapper,ensure the full range of multi-cycle mosquito kill. WIDE RANGE OF APPLICATION PEST CONTROL: The mosquito killer lamp can be used for home, farm, school, warehouse, and so on.Mosquito kill range up to 30 square.