---
product_id: 18950697
title: "HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino"
brand: "hiletgo"
price: "€ 22.22"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hi Letgo"
url: https://www.desertcart.hr/products/18950697-hiletgo-12v-8-channel-relay-module-with-opto-isolated-high
store_origin: HR
region: Croatia
---

# 12V operating voltage 8 independent relay channels OPTO-isolated fault-tolerant design HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino

**Brand:** hiletgo
**Price:** € 22.22
**Availability:** ✅ In Stock

## Summary

> 🔌 Command your smart projects with precision and confidence!

## Quick Answers

- **What is this?** HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino by hiletgo
- **How much does it cost?** € 22.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/18950697-hiletgo-12v-8-channel-relay-module-with-opto-isolated-high)

## 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

- • **Powerful 12V Drive:** Reliable high-voltage operation for demanding projects
- • **8-Channel Control Hub:** Manage multiple devices seamlessly with 8 independent relays
- • **Clear Visual Feedback:** Dedicated LEDs for power and relay status keep you in control
- • **Optocoupler Isolation:** Protect your circuits with advanced fault-tolerant design
- • **User-Friendly Interface:** Screw terminals and jumper settings make setup effortless

## Overview

The HiLetgo 12V 8 Channel Relay Module offers robust, opto-isolated switching with 8 independent relays capable of handling up to 10A at 250V AC or 30V DC. Featuring fault-tolerant design, jumper-configurable high/low triggers, and clear LED indicators, it’s a professional-grade solution for Arduino and other microcontroller projects requiring reliable multi-channel control.

## Description

Description : 1. The module uses genuine quality relay, normally open interfaces Maximum load : AC 250V/10A, DC 30V/10A; 2. Using SMD OPTOCOUPLER isolation , driving ability , stable performance ; trigger current 5mA; 3 . The module voltage is 12V; 4 . Each way module can be set high or low triggered by jumper ;5 . Fault-tolerant design , even if the control line is broken , the relay will not operate ; 6 . The power indicator ( green ) , 8 relay status indicator ( red ) 7 . Interface design humane, all interfaces can be connected directly via terminal wiring leads , very convenient 8 . Module size : 141.5mm * 50mm * 18.5mm ( L * W * H ) 9 . Has four mounting bolts holes , hole 3.1mm, pitch 136mm * 44.5mm Module Interface :1. DC +: 12V positive power supply 2. DC-: negative power connection 3. IN1-IN8: each way based on the settings , can be high or low to control the corresponding relay Relay outputs :24 line interface, the interface can be directly connected to all leads , user-friendly 1. NO1 - NO8: normally open relay interfaces , relay before the vacant after the pull shorted with COM 2. COM1 - COM8: Relay Common Interface 3. NC1 - NC8: normally closed relay interface relay shorted with COM ago , after the pull- vacant High and low trigger selection : 1.S1-S8 in order to relay a road -8 way high and low trigger selection ;2.Com with low short circuit , triggering the corresponding relay is low , while the high end of the short com high trigger Package Included:1*12V 8 Channel Relay Module With Optocoupler

Review: Economical solution - Great relay and very economical and very easy to connect. Got the job done for my project!
Review: Quality electronics, bargin price... can't figure out what people are complaining about in reviews - Works as advertised. I have used several of these for various projects, all worked fine, all are reliable. Everything is labeled clearly on the board. It can be triggered by 12v or 5v, there are little jumpers to change this, again, all clearly labeled. The isolation is a nice feature, though not important in any of the applications I need. The screw terminals hold stranded 18 gauge wire very securely (you can even get two in if you are careful.) I really like the LEDs for each relay that light up when the relay is triggered, makes keeping track of things while setting up complex wiring a lot easier. I can say from experience that these are robust. I accidentally hooked up a few wires incorrectly and shorted 3 of the relays. The plastic on my wires melted before I could unhook from the power supply.... but the board suffered no damage. Some reviewers complained that there are no directions, but honestly, if you don't know what +, -, NC, NO and com are, and if you don't know how to change jumpers, you need a course in basic electronics: directions aren't going to help you. Everything is labeled, the specs are in the description. At less than ten bucks, these things are a bargain.

## Features

- 12V 8 Channel Relay Module With OPTO-Isolated High And Low Level Trigger
- The module Operating voltage 12V;
- 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).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LW2GA5Y |
| Brand | HiLetgo |
| Brand Name | HiLetgo |
| Coil Voltage | 12 Volts |
| Connector Type | Screw |
| Contact Current Rating | 10 Amps |
| Contact Material | Silver |
| Contact Type | Normally Closed, Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 4.5 out of 5 stars 217 Reviews |
| Item Weight | 0.11 Pounds |
| Manufacturer | HiLetgo |
| Maximum Switching Current | 10 Amps |
| Maximum Switching Voltage | 250 Volts |
| Model | 3-01-0348 |
| Mounting Type | Screw Mount |
| Operation Mode | Automatic |
| Part Number | 3-01-0348 |
| UPC | 702082656006 |
| Unit Count | 8.0 Count |
| Wattage | 60 Milliwatts |

## Product Details

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

## Images

![HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino - Image 1](https://m.media-amazon.com/images/I/71iHfA+0UhL.jpg)
![HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino - Image 2](https://m.media-amazon.com/images/I/61-OxoJ476L.jpg)
![HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino - Image 3](https://m.media-amazon.com/images/I/61T7M2t840L.jpg)
![HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino - Image 4](https://m.media-amazon.com/images/I/71oD-udEDjL.jpg)
![HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino - Image 5](https://m.media-amazon.com/images/I/819w3pa9OsL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Economical solution
*by J***V on March 12, 2026*

Great relay and very economical and very easy to connect. Got the job done for my project!

### ⭐⭐⭐⭐⭐ Quality electronics, bargin price... can't figure out what people are complaining about in reviews
*by E***H on September 23, 2020*

Works as advertised. I have used several of these for various projects, all worked fine, all are reliable. Everything is labeled clearly on the board. It can be triggered by 12v or 5v, there are little jumpers to change this, again, all clearly labeled. The isolation is a nice feature, though not important in any of the applications I need. The screw terminals hold stranded 18 gauge wire very securely (you can even get two in if you are careful.) I really like the LEDs for each relay that light up when the relay is triggered, makes keeping track of things while setting up complex wiring a lot easier. I can say from experience that these are robust. I accidentally hooked up a few wires incorrectly and shorted 3 of the relays. The plastic on my wires melted before I could unhook from the power supply.... but the board suffered no damage. Some reviewers complained that there are no directions, but honestly, if you don't know what +, -, NC, NO and com are, and if you don't know how to change jumpers, you need a course in basic electronics: directions aren't going to help you. Everything is labeled, the specs are in the description. At less than ten bucks, these things are a bargain.

### ⭐⭐⭐⭐⭐ Works great!
*by R***Y on March 19, 2021*

I put an array of switches on top of the dash of my jeep but did not have enough room to route big cables to power the lights, etc the switches were meant to control. So I just ran a CAT 6 cable, which cannot carry any current speak of, to the switches and then to this relay board. Then of course powered the relay board with real wire and it worked awesome. I mounted the board on a piece of cheap cutting board I bought from Wally world and mounted it under my steering wheel area in my jeep. Honestly it’s kind of a bragging point to show folks the board with integrated relays and the way I wired it. Looks pretty sweet and nerd cool. I’m an automation engineer and this was the cheapest solution I could ever dream of and still works great. I have an in-line blade fuse holder for each incoming power line and quick connectors on the harness for ease of mounting or removing from the vehicle.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.hr/products/18950697-hiletgo-12v-8-channel-relay-module-with-opto-isolated-high](https://www.desertcart.hr/products/18950697-hiletgo-12v-8-channel-relay-module-with-opto-isolated-high)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-18*