This single relay module can be used in interactive projects. It is active HIGH level. This module uses SONGLE 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.
