Bprtcra 4 Pack Car Door Warning Lights, Universal LED Safty Lights with Red Strobe Flashing, Waterproof Wireless Anti Collision Auto Warn Lamp, Prevent Accident (colourful)

【Car door warning light】: When the door is turned on, the red light flashes rapidly, warning the rear to the car, to avoid the dim light when the accident occurred and chase. Each light has 5 LED lights, super bright. 【Intelligent Induction】: Built-in magnetic sensor, the warning light will start flashing for 110 seconds once the car door is opened, and then the light will turn off automatically. 【3 Flashing Modes: 0-7 seconds】: all led rapid flashing; 7-60 seconds: each led sequential flashing; 60-110 seconds: each led slow swirl flashing. 【Waterproof safe lights】: High-tech component sensing, superior endurance, standby time up to 3 years. Powered by CR2032 button battery, low consumption and energy-saving, easy to replace by yourself. 【Universal design】: Our Car Door warning lights fit for any cars, SUV, truck; Wireless design, do not destroy the original car lines, only need to stick them at the door.