The EL55 provides a 20-foot zone of advanced mosquito protection featuring an ambient dimmable light to create a warm, comfy space around our patio, deck, pool, and more. Heat-activated technology: Powered by a rechargeable Li-ion battery, with up to 9 hours of mosquito protection. 12 hours of mosquito repellent included. Liquid-repellent included. Liquid-repellent cartridges are easy to replace and can be purchased at most big-box retailers. Includes USB-C charging cable. Boxed. Pad print up to 2 colors. *Must be purchased in increments of 6 due to case pack quantity.