Insect Killer Machines, UV Lights draw creepy crawlies into a high voltage double electrical grid where the mosquitoes and flies are electrocuted. The light and the wires are housed in a defensive plastic or item body part metal enclosure. When the flying bugs see the UV light from the insect killer bulb, it enters the space in the middle of the double mesh grids. The bugs complete the electric circuit, and the voltage crosses the space between the circuits, immediately killing the bugs.