ThermaCELL’s outdoor bug repellent lantern provides a 15- X 15-foot area repellent that keeps bugs out. The ThermaCELL Outdoor Lantern has eight LEDs and offers twice as much light as earlier ThermaCELL models. It operates on a single butane cartridge, which heats a repellent mat releasing allethrin, a synthetic copy of a natural insecticide found in chrysanthemum flowers, into the air. The easy-grip handle mimics the finger formation of the hand, so the lantern is easy to carry or hang. The lantern weighs less than a pound, making transportation a breeze.