About this item The power supply voltage of the relay module is DC5V. The maximum output load is AC250V 10A and DC30V 10A. The relay has a standard interface and can be directly connected to the microcontroller, which is convenient for wiring. Package contains 10pin male to female DuPont wires. High Level or Low Level Trigger. Pull in at low level and release at high level. The status indicator is on when it is pull in, and it is release when it is released. The 4 channel relay interface board can directly control Arduino, AVR, PIC, ARM, PLC and other microcomputers, and can also control various high-current electrical appliances and other equipment. Widely used in all MCU control, industrial fields, PLC control, smart home control. 4Pack 4 Channel DC 5V Relay Module with Optocoupler Relay Board for Arduino Raspberry Pi MEGA2560 Electronics › Computers & Accessories › Computer Components › Single Board Computers Electronics › Computers & Accessories › Computer Components › Single Board Computers Electronics › Computers & Accessories › Computer Components › Single Board Computers Electronics › Computers & Accessories › Computer Components › Single Board Computers