North American Signal Micro-Burst double flash 4.6 inch wide x 4 inch tall Emergency Vehicle Mini Strobe Light has a magnetic base, 15 foot straight cord and plug assembly designed with a built in on/off rocker switch and L.E.D. indicator. Unit operates at 12/48V D.C. Micro-Burst lights are sealed to keep out dirt, moisture and reinforced against shock and vibration. Produces 65 double flashes per minute at 375 cand/sec. U.L. Listed with 3 year manufacturer's warranty.