Features:
1>. Small size: 56*21*11mm
2>. Simple wiring.
3>. Targeted.
4>. Custom installation.
5>. Color: Red,Yellow,green
LED: 5mm
Brightness: Ordinary brightness
Voltage: 5V
Input: Digital signal output
Interface: Common cathode, red and yellow green control Individually
Operating current: Red 13mA;Yellow 13mA;Green 25mA

Use manual :
It just support controller to contorl;
Input High or Low level from controller to make LEDs ON or OFF.
It can be controlled by PWM,too.

Application:
1>. Analog traffic signal system
2>. Teaching demonstration
3>. Indication sign
4>. Light alarm system

Frequency asked questions:
1>. Does it work with 3.3V or 5V?
Q : It can work with 3.3V and 5V.
2>. Is it RGB?
Q : No,Each LED lamp can only emit one color of light.
3>. Can 3 LEDs be illuminated at the same time?
Q : Yes,it can.It can be controlled by yourself.