1. During the use of the mosquito killer, closing the door and window, turning off the light can achieve better results. 2.The mosquito lamp placed at a height of 1-2M is conducive to the spread of light, can better attract mosquitoes. 3.Turn on the mosquito killer before you go to sleep. 4. The usb mosquito lamp will be more effective in places such as the bathroom, kitchen and utility room, etc.