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2-Channel 12V High Level Trigger Relay Modules for Arduino (10 PCS)
Relay board is one kind of very popular switch module. You can use it control any devices on or off. This is a DC12V controlled 2 channel relay module. It's high level trigger. Trigger current need not less than 5mA£¬ It can be used in many industry system that using DC12V power supply. Features: 2-channel 12V high level trigger relay module Application: Let-through or break the circuit within 10A / 220V