AC 110V 220V Power-ON Delay Relay Module AC 220V 7A Voltage Output 180min Adjustable Switch Timer Delay Controller - Relay Module - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY, Development board ICStation
Wifi Relay Switch Module High Power Self-Lock Mode AC 220V 6.8x3.3x2.6cm for Remote Control - WiFi Module - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY, Development board ICStation
Gravity: 16A Relay Module For Arduino wiki- DFRobot
Raspberry Pi: 8 Channel Relay step-by-step with software examples for automation - YouTube
Relay Module for Arduino and Raspberry Pi 5V DC Trigger - Walmart.com
8 Relay Board for your PIC, AVR, ARM, 8051, Arduino or Raspberry PI Project - 5V
Home Automation with Raspberry Pi and Relay Module - AriyankiNET