The solar knot warning light absorbs electricity through the solar panel. When driving when the light is dim, the warning light automatically turns on and flashes through the high-sensitivity vibration sensor and photosensitive system. The high-brightness LED light will flash alternately. The shining warning light is not only The decorative car body is beautiful, and it can remind other surrounding vehicles to pay attention to the distance between them, ensuring your travel safety! No wire installation is required: the product is directly attached to the car roof using strong double-sided tape Automatic charging products use high-efficiency solar charging panels and have good charging performance. Intelligent opening and closing function: The product adopts a high-sensitivity shock sensor and photosensitive system, which automatically turns on and flashes when driving in dark light. It will automatically shut down after parking or the car body does not vibrate for 20 seconds. There is a built-in LED light with three color flash modes of "green, blue, and red", which serves as a warning light to warn surrounding vehicles to pay attention to the driving distance. Note: Installation location: It is recommended to install the product on the roof of the car. The solar panel can easily absorb solar energy and remind neighboring cars to pay attention to the distance between them! 1.This product can not replace the car antenna, is a copy of the antenna modeling production.There is no radio function. 2.For the first use, please press the red switch button at the bottom to confirm that the light is on and paste the installation after no problem Colour:black Material:ABS Package Contents: 1 x fin warning light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.