This is an environment-friendly traffic light design, and is “A” traffic light exactly! Only one traffic light is required by applying multi-color LED technology to replace original single-color LED’s. This reduces manufacturing costs simply and cleverly. The light uses solar power to help the environment and save money. Discolor LED technology is getting better day by day and will replace incandescent light and three different self-color LED. It will also replace the electric energy with solar energy while reducing the manufacturing costs and energy consumption. This helps restoring the earth.