Our 3 LED Sequence Circuit provides a great way of animating a scale model with a repeating sequence of lights. The lights flash 1,2,3 with a several-second pause, then repeat. We added our small but bright Nano size lights, each on 14" wire. Choose from Red or Cool White You can run this circuit either on: 5-12 volt DC batteries or power adapter Or choose the 7-19 volt AC/DC option for Model Train Power supplies Circuit Dimensions: 2.3 inches long x 0.95 inches wide x 0.36 inches tall "What do I need to run this circuit?" 5-12 volt battery / regulated adapter Your own battery, or for 9 volt get our 9 volt battery snap/switch or plug in 12 volt get our 12 volt regulated adapter Your own AC/DC or DCC supply: 7-19V 7-19 volt Universal AC/DC/DCC circuitis already set up with a resistor and rectifier for your own power supply
