Traffic Light LED Display

Perfect for model railroaders!

Description:

• Color: red, green and yellow
• LED: 5mm x 3
• Voltage: 5V
• Input: Digital signal output
• Interface: common cathode red and yellow green control alone
• Platform: Arduino, 51 single chip
• Size: 56 x 21 x 11mm
• Material: PCB + Alloy + Plastic.