1. A mini traffic indicator light module, common cathode power supply . 2. Input digital signal to control red / green / yellow LED lights independently . 3. Voltage: 5V . 4.Input port: digital level signal . 5. Pins: GND ( negative pole ), R ( red light signal ), Y ( yellow light signal ), G ( green light signal ) . 6.Come with a light transparent box for easy carry and store . 7. Suitable for DIY traffic indicating and controlling . 8.Package Contents: 1 x LED Traffic Lights Module, 1 x 4-pin Dupont Wire ( 20cm ), 1 x Plastic Box .
