Description:(Note: car owners and friends, you can light up by blowing lightly with your mouth. The best proof of this is that the light has no quality problems. If it does not light up when installed on the car, first understand its principle: the wind drives the fan to rotate, and the fan Rotation drives the motor to generate electricity, and the motor generates electricity to make the light shine. When driving, the light does not light up, there is only one reason, the speed of the fan is not enough to drive the motor to generate electricity. When installing, please align the direction of the fan in the direction of the wind, and try to face In addition, do not install it in the middle net, the easier it is to blow into the wind, the better, in case the light does not turn on, please adjust the direction of the fan and the installation position of the wind light and try again)In the dark, like stars, it can help your driving safety, suitable for all cars.Item Name: Wind Power LightMode: LED LightMaterial: coating + plasticColor: white, blue, tri-color lightQuantity: 2 pieces, same colorDimension: 12cm x 2cm x 4cm / 4.72" x 0.79" x 1.57" (Approx.)Features: Self-Adhesive, Universal, 180 Degree Adjustable, Wind PowerPackage includes:2 * Wind Power LightsQuality Commitment: We promise to inspect each product more than 3 times before shipment, which convinces us that we provide customers with high-quality products. If you need any help or have other questions, please feel free to write to us. We will get back to you within 24 hours.