Price is for 1 signalsGreen at bottom/Yellow/Red on topSMD LEDs made, HO scale CharacteristicPrice is for 1 traffic lightsHeight : Approx. 70mm or 2.76 inch Heightwith 8 lead wires, 2 black wires are common anode wires, shorter and longer color wires are cathode wires, all LEDs can be lighted indenpendently.each LED for DC 3V and 20mAthe signal head is made from Plastic Brand newPRODUCT DESCRIPTION you may control them manually by 4 position switch.orClick Here To Buy the other Signal Controller...