Maximum mosquito protection and soft ambient lighting. Outdoor enthusiasts of all types can protect themselves from pesky mosquitoes - and bring a soft glow to their patios or campsites - with the ThermaCell mosquito repellent lantern. The lantern is every bit as effective against mosquitoes as ThermaCell appliances - plus, it provides safe, effective lighting without messy candle wax. For added protection, the lantern automatically shuts off if tipped over. Each lantern includes one cartridge and three mats for up to 12 hours of protection.