This relay module is 5V active low
It is a 4-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipment with large current
Relay output maximum contact is AC250V 10A and DC125V 15A
Standard interface can be directly connected with microcontrollers
Red working status indicator lights are conducive to the safe use
Widely used for all MCU control, industrial sector, PLC control, smart home control
Specification:
Working voltage: 5V
Channel: 4 channel
Size: 75 x 55 x 18mm