RD-Light-WR is a machine vision brightness control system developed by Ruida Technology ,which is specially designed to drive red and white light source. The system supports two light source brightness adjustment modes including software adjustment of upper computer and brightness controller adjustment. The light source brightness adjustment has a wide range and high stability. The communication mode between driver and PC software is RS232 serial port. The light source has protective glass and sprayer plate to protect the camera lens for better visual effect and provides a component to eliminate light reflection for customers.