
4-Channel 12V Relay Module Board for Arduino & Raspberry Pi
The 4-Channel 12V Relay Module Board lets an Arduino or Raspberry Pi control up to four devices independently while powering the relay side from a 12V supply. Each channel acts like an electrically controlled on/off switch, so your code can toggle lights, fans, pumps, valves, and other loads from simple GPIO trigger signals. This is a great option for control boxes and automation builds that already run on 12V power and need multiple switched outputs without wiring four separate relay boards.
Original: $7.50
-70%$7.50
$2.25More Images





4-Channel 12V Relay Module Board for Arduino & Raspberry Pi
The 4-Channel 12V Relay Module Board lets an Arduino or Raspberry Pi control up to four devices independently while powering the relay side from a 12V supply. Each channel acts like an electrically controlled on/off switch, so your code can toggle lights, fans, pumps, valves, and other loads from simple GPIO trigger signals. This is a great option for control boxes and automation builds that already run on 12V power and need multiple switched outputs without wiring four separate relay boards.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The 4-Channel 12V Relay Module Board lets an Arduino or Raspberry Pi control up to four devices independently while powering the relay side from a 12V supply. Each channel acts like an electrically controlled on/off switch, so your code can toggle lights, fans, pumps, valves, and other loads from simple GPIO trigger signals. This is a great option for control boxes and automation builds that already run on 12V power and need multiple switched outputs without wiring four separate relay boards.























