ITEM NAME:LED Electric Mosquito Fly Bug Insect Trap Zapper Killer Night Lamp 110V 220V Z a.imagelink a:hover.imagelink {color:#db3606;.1 x Mosquito Killer. US Plug, 110V & 220V, both are workable. Plug and play, directly insert it to a power socket, and turn on the power button. Not open the door/window, not turn on the light, and not turn on the fan to garantee its best performance.