V-SEK 38" 36 LED Emergency Warning Traffic Advisor 13 Modes Vehicle Weather Proof Strobe Light Bars (White/Yellow) Package Includes: 1 xWeatherproof Traffic advisor strobe light bar with on/off switch and modes change button. User manuals is included. 13 Different modes/patterns of strobing/flashing with just a press of a button, Includes directional flash patterns. (Left, Right, and Center Out, and so on) .Mode Memory Function is available Brighter and more effective than standard LED strobe lights, it is even visible during the daytime conditions 11.5 feet (3.5 m) extension cable for mounting on compact and large vehicles. Universal for all vehicle with a 12V power source