โมดูลไฟจราจร Arduino สีแดงสีเหลืองสีเขียว 5 มิลลิเมตร LED Mini

LED traffic light module 5V traffic light module Color: red yellow green LED: 8mm x3 Brightness: normal brightness Voltage: 5V Size: 56x21x11mm Input: digital signal output Interface: common cathode red yellow green separate control The green light is darker, the yellow light is brighter than the green light, and the red light is the brightest.