---
product_id: 33273640
title: "8 Channel Digital Ac Programmable Light Dimmer Module Controller Board Arduino Raspberry Compatible 50/60hz 110V, 220V IOT"
brand: "krida"
price: "¥13285"
currency: JPY
in_stock: true
reviews_count: 8
category: "Krida"
url: https://www.desertcart.jp/products/33273640-8-channel-digital-ac-programmable-light-dimmer-module-controller-board
store_origin: JP
region: Japan
---

# Supports 110V/220V AC power Arduino & Raspberry Pi compatible 8 channels for ultimate control 8 Channel Digital Ac Programmable Light Dimmer Module Controller Board Arduino Raspberry Compatible 50/60hz 110V, 220V IOT

**Brand:** krida
**Price:** ¥13285
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your world with precision and power — 8 channels, endless possibilities!

## Quick Answers

- **What is this?** 8 Channel Digital Ac Programmable Light Dimmer Module Controller Board Arduino Raspberry Compatible 50/60hz 110V, 220V IOT by krida
- **How much does it cost?** ¥13285 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/33273640-8-channel-digital-ac-programmable-light-dimmer-module-controller-board)

## Best For

- krida enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play IoT Ready:** Fully compatible with Arduino and Raspberry Pi for effortless smart home integration.
- • **Master Your Light Show:** Control 8 independent AC channels for custom ambiance or epic holiday displays.
- • **Safe & Isolated Design:** Low and high voltage sides are completely isolated to protect your microcontroller and setup.
- • **Precision Dimming Control:** Zero-cross detection and triac-based phase control deliver smooth, flicker-free lighting effects.
- • **Universal Voltage Flexibility:** Works seamlessly with 110V or 220V AC power supplies, auto-detecting 50/60Hz frequency.

## Overview

The 8 Channel Digital AC Programmable Light Dimmer Module is a versatile controller board designed for Arduino and Raspberry Pi users. It supports 110V/220V AC power with auto frequency detection (50/60Hz), enabling precise dimming of incandescent lamps, AC LED bulbs, and fans via zero-cross detection and triac phase control. With 8 independent channels, it’s perfect for custom lighting projects, home automation, and IoT applications, offering isolated circuitry for safety and reliable long-term 2A current per channel.

## Description

8 Channel Digital Ac Programmable Light Dimmer Module Controller Board Compatible with Arduino, Raspberry Compatible 50/60hz 110V, 220V IOT Main Features: Create Custom 110V/220V Ac light show for HALLOWEEN surprise your friends. 8CH AC Light Dimmer Module Controller Board Compatible with ARDUINO RASPBERRY Compatible 50/60Hz Compatible with ARDUINO, RASPBERRY boards.Connected LOAD current for each channel 2A long-term and 5A short-term. Auto detect 50Hz or 60Hz. / Working voltage from 80v to 240v. AC Phase Control Circuit (Dimming Circuit) / Home Automation, School Projects, Work Related Projects Compatible with ARDUINO, RASPBERRY boards.Connected LOAD current for each channel 2A long-term and 5A short-term. Module contains 8 Triacs with zero-cross detector for programming the intensity of incandescent lamps, heating elements, AC LED dimmable bulbs or fan speed controlled through a micro-controller. Working AC voltage 80v to 240v. Auto detect 50Hz or 60Hz. Zero-Cross detection (with zero/cross output pin SYNC). Compatible with ARDUINO, RASPBERRY boards. Low voltage side and high voltage side is completely isolated. Dimensions of the PCB 131mm x 91mm (5.16inch x 3.58inch). Four mounting holes diameter 3.2mm (0.13inch). Connected LOAD current for each channel 2A long-term and 5A short-term. NOT appropriate to change the brightness of fluorescent lamps !!! For inductive load controlling must be connected RC snubber Dimming control via firing angle method. Warning: This project deals with AC electricity which is dangerous if you don’t know how to treat it safely. You must treat electricity with caution! If you have nay question or need documantation, please contact with us

Review: Perfect mate for Arduino controller - This board works great with Arduino controller to run AC powered Christmas light display. Easy to hook up data and power wiring
Review: 120 volts on the heat sinks? - I recently had a wire pull out of the plug on this board and touch one of the heat sinks while testing the unit. It sparked and sent 120v through my Arduino, through the USB to my PC, which fried the USB port on my PC and the Arduino. It also fried a few other trancievers on my RS485 line. I will be sure to hot glue the wires in the plug in the future. This board has 120 volts of potential between the heat sinks and neutral

## Features

- 8CH AC Light Dimmer Module Controller Board Compatible with ARDUINO, RASPBERRY Compatible 50/60Hz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BMSRVVE |
| Best Sellers Rank | #586,747 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,054 in Dimmer Switches |
| Brand | KRIDA |
| Customer Reviews | 4.5 4.5 out of 5 stars (14) |
| Date First Available | February 10, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 5.2 x 3.2 x 1 inches |
| Item Weight | 4.8 ounces |
| Item model number | 8ChAcDimmer |
| Manufacturer | Krda |
| Number of Processors | 1 |
| Operating System | Linux |
| Power Source | AC |
| Processor Brand | ARM |
| Product Dimensions | 5.2 x 3.2 x 1 inches |
| RAM | LPDDR |

## Product Details

- **Brand:** KRIDA
- **CPU Manufacturer:** ARM
- **Compatible Devices:** Arduino, Raspberry Pi
- **Included Components:** 8 Triacs with zero-cross detector, Four mounting holes
- **Operating System:** Linux

## Images

![8 Channel Digital Ac Programmable Light Dimmer Module Controller Board Arduino Raspberry Compatible 50/60hz 110V, 220V IOT - Image 1](https://m.media-amazon.com/images/I/81W30GC0iqL.jpg)

## Questions & Answers

**Q: How hot does this board get controlling 8 light circuits when all are on at and running toward their max load?**
A: They are okey. They are not getting too hot.. They have built in heatsink already.  Please let me know if you have any question.

**Q: Can this be pwm driven or is the code much more complicated?**
A: The code is more complicated.  You have to use the zero cross functionality as an interrupt and then trigger the triacs based upon your countries AC sign wave frequency and how much dimming you want.

**Q: The wiring diagrams shows the "sync" pin connecting to an arduino i/o pin 3.   what does this do?**
A: SYNC pin - this is zero cross detector. It connected to the arduino external interrupt, which detect zero cross.

**Q: I looked at the sample code for using this with an arduino.  where does the timerone.h code come from? i.e #include <timerone.h>**
A: You can down load this and other library files from the internet

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect mate for Arduino controller
*by D***S on December 11, 2025*

This board works great with Arduino controller to run AC powered Christmas light display. Easy to hook up data and power wiring

### ⭐⭐⭐ 120 volts on the heat sinks?
*by J***N on July 23, 2025*

I recently had a wire pull out of the plug on this board and touch one of the heat sinks while testing the unit. It sparked and sent 120v through my Arduino, through the USB to my PC, which fried the USB port on my PC and the Arduino. It also fried a few other trancievers on my RS485 line. I will be sure to hot glue the wires in the plug in the future. This board has 120 volts of potential between the heat sinks and neutral

### ⭐⭐⭐⭐⭐ Excellent product, with some mostly minor issues.
*by T***D on September 9, 2022*

This product claims to do 50Hz/60Hz autodetect of the AC line frequency, but that isn't actually a function of the board but the software you run on a micro-controller (Arduino or similar) that you need to add to have a complete dimming solution. All the board does is to provide a sync output that your micro-controller can (and should!) use to control the timing of firing the Triacs on the board. The board comes without any documentation but the connections are clearly marked and lack of documentation shouldn't really cause any problems for such a simple device (8 logic level inputs corresponding to 8 AC load outputs). At the manufacturers website there are links to documentation and software but they are on a restricted google drive and by the time of writing this review my request for access has not been answered. An internet search results in plenty of examples for this specific product and other products that are based on the same concept. I found it no problem to pick some of the ideas from those examples and to create my own software for this board (running on an Arduino Yun to allow for WiFi control of the dimming). This board implements 8 leading edge dimmers (which is the typical design of dimmers for incandescent bulbs). While LED lights sold as "dimmable" tend to work with leading edge dimmers, the result is not always satisfactory (limited dimming range, possible flicker). In general, trailing edge dimmers tend to give better results with LED lighting. However all of the boards I have seen for dimming from a micro-controller are of the leading edge dimmer design. Instead of using it for dimming, the board can also be used to simply turn on or off AC loads. This makes it unnecessary to monitor the sync signal for timing and greatly simplifies the software. However this board does not have the snubber circuits required to switch inductive (motor, transformer) loads reliably (it isn't intended for that purpose). The board does everything I expected it to do and I'm happy with my purchase. The thing I really don't like about it are the screw terminals for the AC input and load connections which are too small. Stranded 12awg wire does not fit at all. Solid 14awg fits well but it still seems as if the connectors are undersized and may not handle any mechanical stress from moving the wires after they have been clamped down (so far they held, its just that the terminals look weak). I needed to control 7 lights and therefore this 8 channel product was ideal for me.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-09*