WoneNice 7 Modes 35.5" 32 LED Emergency Warning Traffic Advisor Vehicle Strobe Light Bar (Yellow) Brighter and more effective than standard LED strobe lights, it is even visible during the daytime conditions Dimensions: 35.5" ( width ) x 2.5" ( Height ) / Cord length: Over 7 Feet to the power switch and mode selector Universal for all vehicle with a 12V power source Latest ultra bright LED chip set technology. 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