This innovative Flameless Flare won't burn as bright as a burning flare, but it's still visible at over 1,000 feet and it lasts over 500 hours, which is A lot longer than the typical 20- to 30-minute lifespan of a highway flare. It's an ideal addition to your kayak, canoe, car, RV, backcountry first aid kit and more. A powerful magnetic base allows for easy attachment to any metal surface (like a car roof or roof rack). Accepts two AAA batteries (not included).