WoneNice 7 Modes 18" LED Emergency Warning Strobe Light Bar (Blue) Universal for all vehicle with a 12V power source Dimensions: 18" ( width ) x 2.5" ( Height ) / Cord length: Over 7 Feet to the power switch and mode selector Brighter and more effective than standard LED strobe lights,it is even visable during the daytime conditions 7 Different modes/patterns of strobing/flashing with just a press of a button Comes with installation screws and nuts for easy roof top attachment