Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
There are more than 0.2 billion achromates in the world. It is difficult for them to distinguish the color of the traffic signal lamps. Some countries even prohibit the achromates to drive vehicles. To make them go out more safely, we design this traffic signal lamp.