What is light up japanese license plate?

A light up Japanese license plate is a license plate manufactured with an in-built LED lighting system that illuminates the registration number of the vehicle. These license plates are legal and commonly used in Japan as they add an aesthetic appeal to the vehicle and make it easily identifiable in low-light conditions. The LED lights are designed with several features, including weather resistance, low power consumption, and easy installation. However, these license plates have not been widely adopted in other countries due to legal restrictions and safety concerns.