Dynatrap 1 Acre Insect Trap. It attracts and captures all flying insects, including moths, flies, gnats, and mosquitoes. This bigger design features brighter bulbs and a more powerful fan for a larger catch. A protective screen between the bulbs and the fan ensures safety, while a damper closes when the trap is turned off to prevent insects from escaping. Suitable for large areas requiring heavy-duty insect prevention and small yards & patios.