2/4/8 Kanäle 5 V 12 V Computer USB Steuerung Verzögerungsschalter antriebsfreies Relaismodul
ab 6,50 €
1 2/4/8 Channles 5V / 12V Relay Module. Using the dedicated relay driver chip ULN2803, the relay works more stably. Square USB interface, stable connection. Input current:>300MA. hope you could understand.
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