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5v 4 Channel HLT Relay Module

  • Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA
  • Module operating voltage 5V
  • The module can be high or low by a jumper setting trigger
  • Fault-tolerant design, even if the control line is broken, the relay will not operate
  • The power indicator (green), the relay status indicator (red)


  • DC+: positive power supply (VCC)
  • DC-: negative power supply (GND)
  • IN1, IN2, IN3, IN4: can be high or low-level control relay
  • Module size: 73mm*50mm*17mm (L*W*H)
  • S1, S2, S3, S4, HIGH/LOW LEVER


  • 1 x 12v 4 Channel HLT Relay Module

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