Product Feature:Extremely low power consumption rate.Super bright LEDs.30、000+ hours of lifespan.LED Color: BlueFit for any vehicle 12VKey Features:Interchangeable / Compatible with: All automobiles and devices equipped with a 12V power source.Flash Mode A- Light blocks 1、 2、 & 3 flashes rapidly for 8 times、 followed by light blocks 4、 5、 & 6 flashing rapidly for 8 times. Repeats continuously.Flash Mode B- Light blocks 1、 2、 & 3 flashes once、 followed by light blocks 4、 5、 & 6 flashing once. Repeats continuously.Flash Mode C- All 6 light blocks flash once simultaneously with a brief pause between each flash. Repeats continuously.Extremely low power consumption rate.Super bright LEDs.30、000+ hours of lifespan.Package:6 x 8 feet extension wires1 x set of mounting clips and screws1 x control box with 3 flash modesNo manual but it's easy to operate