This is a relay module with high performance, which is convenient and practical for users. Module Interface 1. DC 43;: DC power supply positive; 2. DC -: DC power supply module negative; 3. IN: Signal input terminal(support High/Low Level switch freely); 4. Normally open (NO): Relay normally open; 5. Common terminal (COM): Relay common; 6. Normally closed terminal (NC): relay normally closed terminal; Specifications: Type: 1-Channel / 2-Channel (Optional) Relay Voltage: 5V / 12V / 24V (Optional) Output Capacity: within DC 30V 30A or AC 250V 30A Quiescent Current: 5mA Maximum Current: 5V: 190mA; 12V: 80mA; 24V: 50mA Trigger Current: 5mA Module Size: 1-Channel: 66 * 40 * 22mm; 2-Channel: 69 * 66 * 22mm Module Weight: 1-Channel: 47g; 2-Channel: 90g Package List: 1 * Relay Module