8CH 12V Relay Board

Here's a rearranged version:
Package Included: 1 x 8 Channel 12V Relay Module
Description:
Module size: 138m * 56mm * 18.5mm (length * width * height), net weight: 120g
There are four fixed bolt holes with 3.1 mm spacing of 131 mm * 49.5 mm.
The module meets international security standards, featuring isolation grooves between the control area and the load area.
Adopt double-sided FR-4 circuit board design and high-end patch technology.
Utilizes Songle genuine relay control.
Relay action instructions: bright during suction and closure, not bright during disconnection.
When there is a low-level signal at the signal input, the common terminal and the normal beginning will be connected.
Relays can directly control various equipment and loads.
There are 8 open and 8 closed contacts.
Blue KF301 terminal connection control line for added convenience.
The finished product undergoes a 100% functional test and stability test.
Module interface:
VCC: Connect 12V power supply positive pole.
GND: Connect negative pole of 12V power supply.
IN1-IN8: Signal trigger, low level effective.
Relay Output: 12-wire interfaces, all of which can be directly connected to lead out, convenient for users.
NO1-NO8: Relay usually opens interface. Relay is suspended before switching on and after switching on, COM1-COM8 relay public interface is short connected with COM.
NC1-NC8: Normally Closed Interface of Relay, Short Connection with COM before Relay Suction, Suspension after Suction.