This is the set of roadside lights that enable you to be seen from up to a mile away without the hazard of fire-based flares. Unlike traditional road flares, these LED beacons are easy to power on/off, won’t burn out after 15-30 minutes, and prevent the risk of a fire. Each unit has 15 flashing LEDs that provide a 360° warning signal and a magnetic base for attaching it to a car’s side, roof, or trailer. The lights have nine different flashing modes including SOS rescue and run for 36 hours. With an IP65 waterproof rating for use on boats. Includes three lights. Requires three AAA batteries. Each light 1 1/2" H x 4" Diam.