Dynatrap DT2000XL, 1 Acre Insect Trap, Attracts & Captures All Flying Insects, Including Moths, Flies, Gnats & Mosquitoes, Twice As Big As The DT1000 & DT1100, Brighter Bulbs & A More Powerful Fan, Protective Screen Between The Bulbs & The Fan & A Damper That Closes When The Trap Is Turned Off To Prevent The Insects From Escaping, Suitable For Large Areas Which Require Heavy Duty Insect Prevention & For Small Yards Patios, For Heavy Duty Insect Control.