DOUBLE HEART FLASHER 50 LED Electronic Circuit Kit for Decorate & Christmas 177 A two hearts shaped flasher circuit that used for light decoration. Blinking manner will start at the first heart shaped LEDs and then the second one, followed by the arrow shaped LEDs piercing at them. Power supply: 9-12VDC. Consumption: 25mA max. @ 12VDC. Adjust blinking speed with trimmer potentiometer. Display : 46 LEDs. PCB dimensions : 4.60 x 3.29 inch. See more info via last picture (circuit diagram)