Catalog > Internet of Things (IOT) Related Products > More Platforms ITE 4CH WIFI Relay Board 4CH WIFI Relay Board ITE 4CH WIFI RELAY BOARD 4CH WIFI RELAY BOARD 5V USING ESP-12F ESP8266 WIFI MODULE. SWITCHES 4 RELAY AT 220V 10A ON CONTACTS. PROGRAM FROM UART OR BOOT FROM FLASH Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview LinkNode R4 is a WiFi relay controller and it is powered by ESP-12f ESP8266 WiFi module which is comptiable with Arduino programming. There are 4 relay channels and each channel allows you to control high-power devices (up to 10 A) via the on-board relay. LinkNode R4 can be used to remotely turn lights, fans and other devices on/off. The WiFi interface will allow you to associate the board with your existing WiFi network and send the commands over the network. Features ESP-12f ESP8266 WiFi module4 Channel relays, supporting:277V AC, 10A125V AC, 12A5V DC powerTwo work modes:Program via UARTBoot from flash References