The Arduino 4 Relays Shield is a solution for driving high power loads that cannot be controlled by Arduino's digital IOs, due to the current and
Arduino 4 Relay Shield - Cablematic
4 Channel 5V Relay Shield Module
It's a convenient way to add 4 channels of major power-control to your Arduino with a minimum of fuss.
4-channel Relay Arduino Interface Shield
Four channel Relay Shield 5V 4 Channel Relay Shield Module for Arduino
Relay Shield 4 Way Channel ; Arduino 5V Module High Current Control
INTRODUCTION, This Relay Shield for Arduino acts like a switch. It is commonly used to control anything over 5V such as lamps, water pumps and garage
4 Channel Relay Shield for Arduino (DFR0144)
A000110 Arduino, Arduino, 4 Relays Shield, 875-0292
Arduino Relay Shield - Espruino
This shield is designed for the Arduino UNO family and features four relays for controlling outputs from a low-power microcontroller.
Arduino UNO 4 Relay Shield - Canada
Arduino 4 Relays Shield Basics
4 Channel Relay Shield
Relay Shield for Arduino Uno, 4 relays (Assembled) - AliExpress
How to use 4 channel Arduino Relay Shield (with code)
Four channel Relay Shield 5V 4 Channel Relay Shield Module for Arduino