Product detailsThis is a suction?type Mosquito Killing Lamp,?and it is USB plug-in, simply means that it can be used on any device that supports USB. The light has a fatal attraction for mosquitos and other household insects and flies. Mosquitos are attracted to the light source, and then they will be trapped into the mosquito tray under cyclone, which will make the mosquito dehydrated and died. It is purely physical air-dried mosquitos killing and odorless. It has no radiation, non-toxic and chemical-free, and is extremely silent, being ideal for the baby nursery or adult bedroom. Safe for human health and environment.?Powered by USB so you can connect this with an adapter, power bank, notebook, computer or any device with a USB port. It is a portable fly traps and has up to 400 square feet coverage. Recommended to use after turning off other light sources and curtains.