kuman 4 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM K49

Module Features: The module comply with international safety standard.it designed on control and load area independently The PCB board designed with double FR4 substrate, more safe and stable. The module could directly control various devices and load. Can be full open or Fully closed. Point to point control and Cycle control. 4 relay outputs, each of 5.08-3P terminal (output is normally open and normally closed) Power supply: 5V Module size: L75*W55*H18.5 mm Net weight: 61g 4 screw fixing hole: Hole diameter: 3.1mm Spacing: 68*48mm Indicator Description: RED is power indicator light, Another four respectively four relays, When the corresponding relay is open,Glow green Packing including: 1x4-way Relay Switch Module