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Keyestudio Single Relay Module Compatible with Arduino - Black
This single relay module can be used in interactive projects. This module uses SINGLE 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.