8 CHANNEL RELAY BREAKOUT WITH ESP8266 (IOT) Using Arduino UNO

another cool stuff, Eight channel Relay board that makes you possible to connect 8 individual 220/110v AC appliances using a small relay, Might be your light or fan or your favorite electrical choices. Simple and easy IOT control system with Arduino

http://sumerulabs.in/blog/2015/07/18/8-channel-relay-breakout-with-esp8266-iot/