This replica traffic signal light is ideal for transportation enthusiasts, an awesome accessory for themed parties! you don't need a lot of space because is 11" high so is the perfect size to accommodate in any table, desk or any place you want. Traffic lights alternates from green, to yellow (amber) then red. No batteries required, plugs into the wall and has an on/off switch. Perfect for rooms, bar rooms, dorm rooms, and more!For ages 12+.