Some LED signals have only 2 wires to power both the RED & GREEN LED’s. An LED is polarity sensitive so if the polarity is reversed the LED will not work, so if two LED’s are joined together but with opposing polarities only one will be ON at any time.
MR370 Automatic 2 Aspect Signal Control with Isolation for 2 wire signals
La note est de 0.0 sur cinq étoiles sur la base des avis
SKU : MR370
9,55£Prix