1: Product model: YF-7 32 common functions to meet more application needs; can control solenoid valves, water pumps, motors, light strips, etc. to run freely2: Input voltage: DC 7~30V optional3: Output power: DC or AC load within 5A can be controlled4: Time range: 0.01 seconds to 999 minutes, adjustable at any timeWiring port description:1. + : Positive pole of input power2. - : Negative pole of input power supply3. IN+: Positive signal input terminal4. IN-: Negative pole of signal input terminal5. NO: The relay is normally open interface, the relay is suspended before it is closed, and it is short-circuited with COM after it is closed.COM: Relay public interfaceNC: Relay normally closed interface, short-circuit with COM before the relay picks up, and hangs after picking upColor: greenMaterial: PCBPackage Contents:1 x Relay moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.