This is a 5V 2-Channel Relay module, It can be controlled directly by a wide range of micro-controllers such as Arduino, AVR, PIC, ARM and MSP430.

Features
5V (20mA) TTL control input which can be directly controlled by Arduino, AVR, PIC, ARM and others.
Indication LED for each Relay's Status

Max Control Capacity
10A@250VAC or 10A@30VDC