HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger sold2026 10pcs Stainless steel Long Coupling

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HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger sold2026 10pcs Stainless steel Long CouplingHiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger Module description: 1. The module Operating voltage 5V; 2. Fault tolerant design, even if the control line is broken, the relay will not operate; 3. The power indicator (green), the relay status indicator (red); 4. Module size: 50mm26mm18. 5mm (LWH). Interface: Input VCC: Relay power supply + GND: Relay power supply IN: Signal trigger input (High or Low