Works right out of the box – simply plug in the power cord, and the bug zapper lamp emits bright light to attract flying insects and eliminates them with a high-voltage grid. Utilizing 75nm wavelength light, the outdoor bug zapper attracts mosquitoes, flies, moths, and other flying insects, instantly killing them with a 1000V electric grid. No insecticides or harmful chemicals required. The effective coverage area ranges from 32 to 40 square meters. For optimal results, turn off other lights in the area for 10 to 20 minutes. Designed for portability, this electric insect killer is suitable for both indoor and outdoor use in bedrooms, living rooms, kitchens, offices, hotels, patios, yards, and more. For best performance, place the device at a height of 0.8 to 1.2 meters and position it 0.3 meters away from walls. The bottom tray can be easily removed using the included screwdriver and cleaned with the provided brush.