Stinger Cordless Rechargable Insect Zapper With 2 NOsquito octenol lure Includes 2 NOsquito octenol lure Portable, cordless and rechargeable 3.5 hour run time with lantern-only feature , Attracts and kills insects within a 625 sq. ft. radius Black UV light technology attracts up to 40 percent more insects than white UV light For best results, hang or position the insect zapper between the source of insects (yard, woods) and the area to be protected, but no more than 10-14 ft. from human activity.