The mosquito killer shell is made of ABS material, which has higher compressibility, durability and longer service life. It is waterproof and can be used outdoors. 1.Efficient Bug Zapper Effect: The mosquito eradication area can be up to 100 square meters. The advantage of using mosquitoes in the dark to distinguish the position of the prey based on the hot and humid carbon dioxide exhaled by the human body and the body temperature, Combined with the phototaxis of mosquitoes, mosquitoes around the initiative to fly to the mosquito killer, and then immediately with 4500V electric shock to kill them.Requires 2.Attention: Mosquito killer shell is made of ABS waterproof material, which can be used outdoors, but cannot be soaked in water. The mosquito killer lamp should be placed at a height of 1.5 to 2 meters to achieve the best killing effect. The "pop" sound from electric shock is normal. In addition, the dust on the light pipe should be cleaned regularly, and the power grid should be cleaned with a small brush. When cleaning mosquitoes, the power must be cut off. Bulb Replacemengt 1.Disconnect the unit from the electric source 2.Open the lamp by twisting the bottom tray in accordance with the arrows on it. 3.Use a screwdriver to remove the screw that holds the plastic gate. 4.Now the bulb can be pulled out of its socket. 5.Insert the replacement bulb into the socket. 6.Mount all parts back. To increase the Eradication rate, please clean mosquitoes stuck in the grid. Before cleaning, Please keep the power off, Use a screwdriver to open the plastic geid case. use soft brush to clean Metal grid. _x000D_