V-SEK 36" LED Emergency Vehicle Traffic Advisor Warning Strobe Directional Light Bar (Yellow) Package Includes: 1 x Traffic advisor strobe light bar with modes change control. User manuals is included. 16 Different modes/patterns of strobing/flashing with just a press of a button, Mode Memory Function is available Controller Unit included, Directional Modes with a press of a button. (Left, Right, and Center Out) Rugged, water resistant housing; Versatile stabilized mounting options Universal for all vehicle with a 12V power source