Maxmoral 2pcs 12V 2 Channel Relay Module Expansion Board with Optocoupler Low Level Triggered

Parameter: Size: 50.5x38.5x18.5mm(LxWxH) Weight: 31g PCB Color: Black Mounting Hole: 3.1mm Voltage: DC 12V Current: More than 100mA Load: AC 250V 10A / DC 30V 10A Wiring: VCC: Positive Pole GND: Negative Pole IN1-IN2: Relay Control Port Attention: Don't support reversed polarity. Feature: High quality relay module, SPDT(single-pole double-throw), 1 COM (common port), 1 NO (Normally Open), 1 NC (Normally Closed). Optical coupler isolation, good anti-interference performance. Low level suction, indicator light on. high level release, indicator light off. VCC for system power supply, JD-VCC for relay power supply, just need to plug in the jumper cap. There are 4 mounting holes surrounded the corners, convenient to install and fix. Package: 2x 2-Channel Relay Module