"Flowtron electronic insect killer eliminates thousands of insect pests daily. Improves the health and quality of life by reducing the spread of infectious diseases and decreasing the annoyance level caused by flying insect pests. 2-year limited warranty. Compatible With Octenol cartridges, Dimensions L x W x H in. 9 3/4 x 9 3/4 x 16 1/2, Indoor/Outdoor Use Outdoor, Material Type Polycarbonate, Power Source Electric, Assembly Required No, Coverage 1 acre, UL Listed Yes, Product Type Bug zapper, Removal Of Flying insect. Patented high-efficiency, nonclogging killing grid Rugged, weatherproof construction - will not rust, crack or fade Includes 30-day octenol cartridge Operates on only pennies a day Avoids the continuous expense and inconvenience of chemical insecticides"
This unit will work anytime it is plugged in. Ultraviolet or "black light" is invisible to the eye, and its ability to attract insects diminishes over time. The longer the light is on the faster this will happen. The light should only be turned on when needed.