ShillehTek 8-Channel 12V Relay Module for Arduino Raspberry Pi

The ShillehTek 8-Channel 12V Relay Module lets your Arduino or Raspberry Pi control up to eight devices independently, giving you a clean way to build multi-output automation panels and test rigs. Each relay acts like an electrically controlled switch, so your code can turn loads on and off on command. This 12V version is useful when your control setup already has a 12V rail for relay power (while your GPIO still provides the trigger signals), making it a solid fit for robotics cabinets, DIY control boxes, lighting zones, pumps, valves, and other multi-channel switching projects.