specification: 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 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 Lamp 1X USB Cable Note: 1. Due to the different display and lighting effects, the actual color of the items displayed on the color image may be slightly different. Thank you! 2. Because it is manual measurement, it allows 1-3cm measurement deviation. After-sales: We may not be able to ensure that every transaction is perfect, but we absolutely protect the interests of all customers! If you have any questions, please contact us, and the rest of us will solve it for you! The product delivery date is 10-25 days, depending on your country or region, please be patient.-Super quiet, will not disturb your sleep. -Please close all windows and doors and other light sources before using. -Suitable for indoor, outdoor, home, bedroom, living room, kitchen, office, ect. -USB Port, the power supply can be connected by USB in many ways, such as laptop, power bank, socket, so it is very convenient when using. -365NM wavelength light attracts mosquitoes and 360-degree surround glow, giving the mosquito a fatal temptation. (Harmless to human body).