Feature●Digital display control switch: it can synchronously display the flashing mode of the car light (normal switch: the flashing mode of the car light cannot be seen in the car), support for up and down mode switching/automatic switching, one-sided flashing and simultaneous flashing mode on both sides.●Service life of more than 30,000 hours: Due to the low power consumption of LEDs, the light strip can be switched on without discharging the vehicle battery.●Memory function: the light bar has an integrated flash pattern memory function. When you turn off the light bar, the pattern is saved. When you turn it on again, the same pattern you have selected will be displayed.●【21 Modules】: The 22 x 4LED modules are positioned inside the light bar to display a full 360 degree warning light output, which is essential for warning everyone around you.Description