The MK20 photocatalytic flying insect trap uses a combination of insect attractant to lure and kill unwanted flying pests. White LED lights lure flying insects to the trap where they dehydrate and die. The flying insect trap lures and kills unwanted mosquitoes. Blue LED UV lights interact with Ti02, creating soft light waves, which specifically target mosquitoes. Use the trap as a nightlight; the blue and white LED lights are great for seeing in the dark. The flying insect trap can also be used for aromatherapy; insert the included sponge sheets into the base of the trap to create pleanant smelling fragrances. The trap can be powered with the included AC adapter or through a USB connection.