Temporizador de semáforo

Acerca de

Traffic Light Timer uses the universally understood green-yellow-red colour sequence to show how much time is left. The first two-thirds of the countdown glow green, the next segment switches to yellow for a heads-up, and the final stretch turns red so everyone knows time is almost up. No numbers required — even the youngest children understand the signal at a glance.

Cómo usar

1. Pick a duration (30 seconds to 15 minutes).
2. Press Start — green lights up immediately.
3. When roughly one-third of the time remains, the light switches to yellow.
4. Below 10 % the light turns red.
5. An alert sounds when the countdown reaches zero.

Preguntas frecuentes