Parameters:* Product Name: Electric LED Mosquito Killer Lamp* Color: White, Black* Applicable Area: 50-100 square meters* Power: 8W* Base Type: USB Interface* Input Voltage: 5V* Warranty: 2 years  Instructions:* Please place the mosquito killer lamp at a height of 0.8-1.2 meters from the ground.* When in use, keep the mosquito killer as far away from the human body as possible because of the attractiveness of human temperature and odor than the machine. In an unmanned environment, the effect of using mosquito killer is more obvious.* This product lures mosquitoes by light source, so when you work, please turn off other light sources in the room. The darker the light, the better the effect. Make sure that only the mosquito killer lights in the room.* Turn on the mosquito killer 2-3 hours before going to bed. Place it in the corner for better results.* Please turn off the lights, windows and doors during use to better attract mosquitoes in a sealed environment.* Open the mosquito net box after 7 days, because the mosquitoes are killed by air-drying and dehydration because of pure physical mosquito killing method. If the box is opened often, other mosquitoes will easily fly away.  Package contents:1X LED Mosquito Killer Lamp1X USB Cable