XKTTSUEERCRR Blue Vehicle Car Truck Emergency Hazard Warning 240 LED Mini Bar Strobe Flash Light Panel Dimensions: 12" ( wide ) x 6.2" ( deep ) x 2.8" ( height ) / Cable length: 2~7 FT / Number of LED: 240leds. There are 7 flashing modes with just one button to switch between. Mode 1: Alternates between left and right side. Mode 2: Alternates between front and back side. Mode 3: Flashes counter clockwise Mode. 4: Flashes clockwise. Mode 5: Strobes all lights a few times then alternates between left and right. Mode 6: Flashes all LEDs at once. Mode 7: Turns on all the LEDs. This high quality and professional grade 240LED vehicle emergency strobe warning light bars are perfect for police officers, first responders, fire fighters, law enforcement, construction workers or emergency workers, and other emergency needs. Easy to install by just plug this into your 12V cigarrette lighter and with the magnetized bottom place on your car. 1 Year Warranty - 100% Satisfaction Guarantee from XKTTSUEERCRR. Please contact us without hesitation if there is any question.