High Power Double Relays Module 5V 30A Load Capacity Optocoupler Intelligent PLC

4 Pack 2-Channel DC 5V Relay Module Switch Optocoupler Isolation High/Low Level

5V/12V/24V Relay Module with Optocoupler 1/2/4/6/8/16 Channel for Arduino Pi UK

2 Channel Relays Module 5V 12V 24V Selectable 30A Load Capacity High Low

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