The Flowtron Indoor Outdoor Bug Trap Zapper combines Uv light attraction, quiet fan suction, and an 800?volt elimination chamber to catch and kill flying pests across up to 530?square feet of space - perfect for patios, yards, garages, basements or indoor rooms where mosquitoes, flies, gnats and other insects are a nuisance. Its innovative bug trap design draws pests in silently and keeps zapping noise to a minimum while working day or night.