10PCS DC 5V 4 canali modulo relè con optoaccoppiatore per PIC AVR DSP ARM Arduino
10PCS 5V 4 Channel Relay Module For PIC AVR DSP ARM Arduino. This is a 5V 4-Channel Relay interface board. 5V Relay Module 4-Channel. 5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current.