Specification:
Voltage: 5V
Color: red, yellow, green
Input: digital signal output
Size: about 56x21x11mm
Light-emitting Diode Size: about 5mmx3
Interface: common cathode, respectively control red, yellow and green.
Working current: red 13mA, yellow 13mA, green 25mA
Brightness: normal brightness
Packing quantity: 2PCS mini traffic signal light modules

Traffic Light Module Manual:

1. Only support controller control.
2. Input high level or low level from the controller to make the LED turn on or off.
3. It can also be controlled by PWM.

Feature:
Small size, simple wiring, targeted, customized installation.
Used in analog traffic signal systems, teaching demonstrations, signs, light alarm systems, etc.
Very suitable for the production of system models of traffic lights.en.wikipedia.org