Optically isolated relays protect your microcontroller from damage if the equipment being controlled fails
5V 2-Channel Relay Interface Board, each one needs 15 - 20mA Driver current
Equipped with high current relays 10A 250VAC ; 10A 30VDC
Standard Interface that can be controlled directly by microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, TTL Logic)
Indication LED's for relay output status