SunFounder 4 Channel 5V Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32
Specification:This is a 5V 4-Channel Relay interface board, Be able to control various appliances, and other equipments with large current.It can be controlled directly by Microcontroller(Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).Link to download the document:https://app.box.com/s/osxbisc71n8npbtiwznvPackage include:* 1 x 4 Channel Relay Module