The 8-channel relay control board is a relay module that can control contacts with 5V and can be used with Arduino or other microcontrollers.
It draws a current of 20mA during the trigger signal from the microcontroller. It is commonly used in various hobby, industrial, and robotic projects.
PLEASE NOTE: FOR PROJECTS INVOLVING 220V MAINS VOLTAGE, YOU SHOULD BE CAREFUL AND TAKE NECESSARY PRECAUTIONS.