Take back the outdoors with the help of the Mosquito Repellent Outdoor LED Lantern from ThermaCell. This innovative light source delivers the soft ambient light of eight LEDs while simultaneously driving off all sorts of biting insects. The Outdoor Lantern uses a butane cartridge (included) to heat a chemically-treated mat, silently releasing an odor-free chemical that creates a 15-Feet x 15-Feet bug-free comfort zone when the lantern is turned on. Lantern uses 1 butane cartridge and 4 AA batteries (not included). Also includes 3 repellent mats for up to 12 hours of protection. Lantern"s 8 LEDs provide two levels of soft pleasant light that can be turned on independently of the bug repellent system. Easy grip handle. 13 oz.