12V 16 Channel Relay Module Board for Arduino with Optocoupler Protection - Compatible with Official Arduino Boards - Ideal for Home Automation, Robotics, and IoT Projects

This relay module can be used in interactive projects. This module uses 5v high-quality relay. It can also be used to control lighting, electrical and other equipment. The modular design makes it easy to expand with the Arduino board (not included). The Relay output is by a light-emitting diode. It can be controlled through digital IO port, such as solenoid valves, lamps, motors and other high current or high voltage devices.