This mosquito killing machine lures insects with three 40-watt ""U"" shaped high-intensity black light bulbs, The Glo-Tube Reflector intensifies black light radiation to highten the effectiveness of the lure, This unit is suited for indoor or outdoor application, Outdoors it is effective over a 2 acre area indoors it is effective for 2000 square feet, Can be used in a vertical configuration or in a horizontal application (requires collection tray model CT 850 when mounted horizontally, ) 2000 sq, ft, Indoors 2 Acres outdoors for night flying insects, All round 360 degree Coverage, Killing Grid Voltage: max 5600 v, peak 9ma, Mounts in horizontal or vertical position, SKU: FLOW013