Bright and suitable. For various types of cars, customers can effortlessly locate your car. Especially in challenging conditions like rain, fog, or at night, providing a practical and eye-catching solution. Safty and Legal usage. In some states, only emergency vehicles like police cars are permitted to use blue or red warning lights. We are the first store use WHITE light to solve this problem. Keep pulling away from you. Improve trustworthiness. Our LED light sign delivers a distinct customer experience, ultimately boosting ratings. Trust building is the key to starting a good relationship in business. Easy to install. With 2 adhesive suction cups in any corner of the windshield.The USB cable is up to 1.5 m long. Soaking the suction cups in water can help them adhere better. If you have any questions before or after purchasing, please feel free to contact us. We will reply within 24 hours and provide the best service. And 8 color product enjoy extend guarantee, check the detail in package when you recieve it. Please do not soak the LED sign light in water, as this may damage the product. Please do not use the LED sign light while driving, as this may affect driving safety.