New patio lantern protects outdoor areas from mosquitoes, black flies and other flying insects by providing a 15 x 15 ft "Mosquito-Free-Zone", the size of an average deck or patio! 98% effective, the ThermaCELL Mosquito Repellent technology has been tested by the Department of Defense and is used by the U.S. Army. A dual product €“ use as a repellent and bright light simultaneously. DEET free and easy to use: no open flame or messy wax. Effective alternative to smelly lotions and sprays. Patio lantern is silent, portable, and odor free, perfect for backyards, decks, picnics, barbeques, and camping. Package contains 1 reusable lantern, 1 butane cartridge and 2 insect repellent mats.