With these UV insect traps, you can now take advantage of this phenomenon. When dealing with insect problems in the house, simply place the device on a flat surface and plug it in. Alternatively, it can also be hung from the ring at the top of the housing. The device features an integrated collection tray at the bottom, which can be removed for cleaning. We recommend using the insect trap before occupying the room. Without distractions from human odors and room lighting, pesky insects are more likely to find their way into the trap. Be sure to keep the windows closed while the device is active, as you don't want to attract more insects into the house.