This is a 5V 4-Channel Relay interface board, be able to control various appliances, and other equipment’s with large current. It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
Operating Voltage: 5V DC, Channel: 4 channel, Relay Output Max.: AC250V 10A or DC 30V 10A, Input: Active Low,