The application contains collection of traffic lights which can be customized. More then 10 types of traffic light are available initially to make its own image. After customization there are the below features within the app: - play directly, - save into application's memory to be able to load it again anytime. Our application can be really useful at the below areas: - education: how the rules should be applied in traffic or at go-stop tasks - sport events: to start a race.