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he control DC or AC signal, you can control 220V AC load. Supply Voltage: 5V Quiescent Current: 4mA Working Current: 65mA Trigger Voltage: 0-2V

AITRIP 10PCS 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger Compatible with Arduino Raspberry pi ARM AVR

Channel 5V 20A Relay Module Board For Arduino Raspberry Pi ARM AVR DSP PIC

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DIYables 2-channel Relay Module 5V for Arduino, ESP32, ESP8266, Raspberry Pi

Huayao 2pcs 8 Channel DC 5V Relay Module with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi: : Industrial & Scientific

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wholesale 2 Channels Dc 5V Relais Switch Module for Arduino Raspberry Pi Arm Avr Dsp

Wholesale 2 Channels Dc 5V Relais Switch Module For Arduino Raspberry Pi Arm Avr Dsp From Amllrf, $7.11

AITRIP 10PCS 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger Compatible with Arduino Raspberry pi ARM AVR : Industrial & Scientific