This is the roadside emergency light that alerts approaching drivers to your vehicle’s presence with a large, eye-catching warning signal projected from the roof of your car. Ideal for dark, dim, snowy, or rainy conditions, its flexible rotating arm with 22 red LEDs creates a bright, 2-ft. diameter emergency signal in one of three messages (“Help”, “S.O.S”. or emergency triangle) that can easily be seen from up to 660 ft. away. Its scratch-free magnetic base securely holds the light at driver's eye level on the roof, trunk, or side of a vehicle to give more advanced warning than common road flares. Includes a reflective red warning triangle for daytime emergencies. IP6 rating for water resistance. Requires 6 AA batteries that power the light for up to two hours. 19 1/2" H x 4" W x 3 1/4" D. (1 3/4 lbs.)