---
product_id: 7893805
title: "2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger"
brand: "hiletgo"
price: "€ 12.62"
currency: EUR
in_stock: true
reviews_count: 10
category: "Hi Letgo"
url: https://www.desertcart.pt/products/7893805-2pcs-5v-one-channel-relay-module-relay-switch-with-opto
store_origin: PT
region: Portugal
---

# 10A max current load OPTO isolation for stable drive High/Low level trigger selectable 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger

**Brand:** hiletgo
**Price:** € 12.62
**Availability:** ✅ In Stock

## Summary

> ⚡ Switch smarter, not harder — reliability you can trust!

## Quick Answers

- **What is this?** 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger by hiletgo
- **How much does it cost?** € 12.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/7893805-2pcs-5v-one-channel-relay-module-relay-switch-with-opto)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** User-friendly screw terminal interface for quick, tool-free connections
- • **Powerhouse Performance:** Handles up to 10A at 250V AC or 30V DC for demanding projects
- • **Rock-Solid Reliability:** Fault-tolerant design ensures relay stays put even if control line breaks
- • **Customizable Triggering:** Easily switch between high or low level trigger modes with jumper settings
- • **Visual Status Indicators:** Dual LED indicators keep you informed on power and relay status at a glance

## Overview

The HiLetgo 2pcs 5V One Channel Relay Module features a genuine quality relay capable of switching up to 10A at 250V AC or 30V DC. It incorporates SMD optocoupler isolation for stable, noise-resistant operation and a fault-tolerant design that prevents unintended switching if the control line fails. With selectable high or low level trigger modes and convenient screw terminal connections, this compact module (50x26x18.5mm) is perfect for professional-grade automation and control projects.

## Description

Module description: 1.The module Operating voltage 5V;2.Fault-tolerant design, even if the control line is broken, the relay will not operate;3.The power indicator (green), the relay status indicator (red);4.Module size: 50mm*26mm*18.5mm (L*W*H). Interface: -Input VCC: Relay power supply + GND: Relay power supply - IN: Signal trigger input (High or Low Level Signal, select via jumper) -OutputNO: Relay normally open.COM: Relay Common Pin NC: Relay normally closed. High or Low Level Trigger Select: 1. Use High Level Trigger When ¡°IN¡± input High Level Signal, the ¡°NO¡± connect with ¡±COM¡± When ¡°IN¡± input Low Level Signal, the ¡°NC¡± connect with ¡°COM¡± 2. Use Low Level Trigger When ¡°IN¡± input Low Level Signal, the ¡°NO¡± connect with ¡±COM¡± When ¡°IN¡± input High Level Signal, the ¡°NC¡± connect with ¡°COM¡± 3. High or Low Level Trigger Select Jumper connect with L, Low Level Trigger Jumper connect with H, High Level Trigger Package Included： 2* 5V 1 Channel Relay Module

Review: Easy to use. - As long as you have a multimeter this is one of the most reliable relay switches I have used. I have it sealed in a large shrink-wrap tube filled with hot glue freely mounted to the side of my bike.
Review: So far its good! - With the caveat that its only been running a few hours, seems good so far. Very simple and easy to connect to my 3.3 Volt Arduino Nano 33. I used 5 volts to power the relay and a 3.3v pin for signal and that seems to work just fine. If I wanted to nitpick, it would be nice if it had solder holes and not just screw terminals. Screws are good for my breadboard prototype; not so much on my final design. So I will try to remove the screw terminals by de-soldering.

## Features

- The module uses genuine quality relay, normally open interfaces , Maximum load: AC 250V/10A, DC 30V/10A.
- Using SMD optocoupler isolation, strong driving capability, stable performance; trigger current 5mA.
- Fault-tolerant design, even if the control line is broken, the relay will not move.
- The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient.
- The Module can be set by jumper high or low trigger.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LW15A4W |
| Best Sellers Rank | #20,116 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Electromechanical Relays |
| Brand | HiLetgo |
| Brand Name | HiLetgo |
| Coil Voltage | 5 Volts |
| Connector Type | Screw |
| Contact Current Rating | 10 Amps |
| Contact Material | Silver Alloy |
| Contact Type | Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 4.6 out of 5 stars 1,182 Reviews |
| Manufacturer | HiLetgo |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 250 Volts |
| Minimum Switching Voltage | 5 Volts |
| Model | 3-01-0340 |
| Mounting Type | Surface Mount |
| Operation Mode | Automatic |
| Part Number | 3-01-0340 |
| Specification Met | Vcc |
| UPC | 702082655948 |
| Unit Count | 2.0 Count |
| Wattage | 5 watts |

## Product Details

- **Connector Type:** Screw
- **Contact Material:** Silver Alloy
- **Contact Type:** Normally Open
- **Current Rating:** 10 Amps
- **Mounting Type:** Surface Mount

## Images

![2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/61Ynyg4Sd8L.jpg)
![2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Image 2](https://m.media-amazon.com/images/I/61Y67RDLHlL.jpg)
![2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Image 3](https://m.media-amazon.com/images/I/61zFlPTLLWL.jpg)
![2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Image 4](https://m.media-amazon.com/images/I/61rpvqFoLcL.jpg)
![2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - Image 5](https://m.media-amazon.com/images/I/51+Du5sRIiL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use.
*by J***B on October 19, 2025*

As long as you have a multimeter this is one of the most reliable relay switches I have used. I have it sealed in a large shrink-wrap tube filled with hot glue freely mounted to the side of my bike.

### ⭐⭐⭐⭐⭐ So far its good!
*by T***R on November 8, 2023*

With the caveat that its only been running a few hours, seems good so far. Very simple and easy to connect to my 3.3 Volt Arduino Nano 33. I used 5 volts to power the relay and a 3.3v pin for signal and that seems to work just fine. If I wanted to nitpick, it would be nice if it had solder holes and not just screw terminals. Screws are good for my breadboard prototype; not so much on my final design. So I will try to remove the screw terminals by de-soldering.

### ⭐⭐⭐⭐⭐ Works perfectly
*by J***R on March 12, 2024*

Wiring was super intuitive and everything just worked. I was able to power, ground and provide signal all from Arduino and then pull 12V DC from a 4A dedicated power source and connect it directly to the 12V DC magnet when the relay receives a signal. Perfect solution for my secret bookcase door project! Only note was that the relay screws needed the perfect sized screw driver because it felt like it was going to strip with the one little screwdriver I use for everything so I had to get a new small screwdriver kit and then i was able to repeatedly install and change configurations on this board without any problem.

## Frequently Bought Together

- HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects
- Arduino Uno REV3 [A000066] – ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-05-16*