Free Shipping Relay expansion board With optocoupler protection of 2-way relay module

Product Description

  Relay expansion board  With optocoupler protection of 2-way relay module

The relay contacts the capacity 250V10A. Relay output normally open, normally closed;
Low level. 5V relay signal input voltage range of 0-5V;
VCC system power. JD-VCC relay power supply. The default 5V relay. JD-VCC and VCC shorted

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