N Scale 4 Temporary Traffic Lights

EN: 4 temporary (mobile) traffic lights in N scale. These are used for securing and managing traffic at construction sites. The lights are built on top of a battery box and usually connected with each other either via radio or a cable. The lights contain a switch box for switching the lights on or off and changing timing settings etc.
NL: 4 tijdelijke verkeerslichten in schaal N.
DE: 4 Baustellenampeln in Spur N