Busch 5968 Belgian Warning Lights

Two warning lights each with two red and one yellow LED and flashing circuit. If a train is approaching the red lights flash alternately. Once the crossing is traffic-free a flashing yellow light will appear. The warning lights can be switch manually or with the Busch Timer with Photocell (No. 5961 in conjunction with special relay 6964) or a relay (with change over sensor) to track contacts which are automatically triggered by a train.