Use this kit for badges, model trains, or kids toys. Comes with 3mm LED's- 2 red, 2 green, and 2 yellow. You use two of any color you like the most. The circuit makes the LED's alternate flash. Flash rate is controlled by changing the resistor value. Use the flashing light to simulate an alarm system in your home or auto.

Power requirement 9 to 15v DC. SIZE: .75" x 1"