5pcs 1 Channel Relay Module, 1 Channel DC 5V Relay Modules with Optocoupler, Compatible with Low or High Level Triggering and Arduino

✔【5V 1-Channel Relay Module】- This relay board provides a single relay controllable via any 5V digital output of your microcontroller.
✔【Key Features】- Normally Open Terminal Peak Load: AC 125-250V/10A, DC 28-30V/10A; Trigger Current: 5mA; Module Operating Voltage: 12V; 4 x 3.1mm Mounting Holes.
✔【SMD Optocoupler Isolation & Jumper Set】- The isolation circuit protects the I/O port from the relay switching current. The module includes a jumper to set the device state to high or low depending on the signal state. It is equipped with screw terminals for the relay (NC, C, NO) and the input. Coil +, Coil -, and Trigger
✔【Wide Application】- This 5V relay board is compatible with ARM/PIC/AVR/MCU/Raspberry Pi/CNC machines/PS4, etc.
✔【User-Friendly Interface Design】- All interfaces can be wired directly via the terminals. Fault-tolerant design; even if the control line is interrupted, the relay will not operate.