The Thermacell Cambridge Mosquito Repellent Lantern effectively repels mosquitoes by creating a 15-foot zone of protection. Its ambient light and decorative design perfectly adorn your deck or patio and is ideal for use while entertaining guests, gardening, around the backyard, and more. 15-foot mosquito protection zone. Turn it on...Mosquitoes GONE! Lantern and repellent operate independently or together Decorative black lantern provides ambient lighting powered by flickering LEDs No spray and no mess. Scent-free and DEET-free. No open flame, no smoky candles Features multiple light modes, including flickering and steady light Package contains: 1 lantern and 12 hours of refills - 3 repellent mats and 1 fuel cartridge. Requires 4 AA-batteries (not included)