Nilight&reg; 31.5" Emergency Warning Traffic Advisor Vehicle Strobe Light Bar - Red & Blue 7 Different modes of flashing / scanning mode. Please read the description to see a detail description of each mode Dimensions: 31.5" ( width ) x 2.5" ( Height ) / Cord length: Over 7 Feet to the power switch and mode selector Fitment: Universal for all vehicle with a 12V power source Includes:1 x Traffic advisor strobe light bar with on/off switch and mode changer button Very bright led that are visible even during daytime conditions.