4-channel relay output module, relay output contact is maximum 250A 10A Effective VCC, GND power input, can relay a separate power supply relay power input of JD-VCC Input IN1, IN2, IN3, IN4 signal line active low 5V 4-Channel relay board controlled directly by micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) need 50-60mA driver current High-current, AC250V 10A, DC30V 10A. Packing Including: 1x 5V 4 channel relay module   package includes : – 4 chnl 12v relay module SKU: PGI-0020 Category: Relay