Wireless car door led warning light

When you open the car door, the red warning light flashes quickly, reminding the rear vehicles or pedestrians that the car doors are opening to avoid collision or accident. Suitable for any car, SUV, truck. These car door crash lights use wireless design, no need to cut or damage the original car wires, just stick them on the door by the sticker. It does not affect the opening, closing of the door. Universal strobe warning light, built-in magnetic sensor, it will start flashing once the car door is opened, close the door and the light will turn off automatically. High sensitivity and good stability. Come with waterproof rubber ring inside to better protect the main control board. It can be used even on rainy days. Safety warning light uses CR2032 button battery (battery included), in normal working condition, expected battery life is 720 hours. Screw cap design, can easily replace the battery.