Simple advertising LEDs kit red and yellow flashing LEDs solding DIY Kit

Simple advertising lights by light-emitting diodes, capacitors,transistors, potentiometers and other commonly used electronic components. Circuit power supply voltage 3-5v. When the power supply is connected, the two triodes in the circuit will take turns to lead and cut off and two groups of LED will keep circulating changing the resistance of RP1 and RP2 can change the flashing speed of the LED.

Power supply voltage DC 3-5v