---
product_id: 41979542
title: "PWM AC Voltage Dimmer 50/60Hz 80-240VAC for Arduino Raspberry Leading Edge Dimmer for AC Motor Pump Fan Light Heater Max 500W Pro Engineered Onboard Snubber Circuit - Compatible Worldwide"
brand: "krida"
price: "1755442₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Krida"
url: https://www.desertcart.vn/products/41979542-pwm-ac-voltage-dimmer-50-60hz-80-240vac-for-arduino
store_origin: VN
region: Vietnam
---

# 80-240VAC universal voltage PWM input signal up to 10kHz Auto-detects 50/60Hz AC line frequency PWM AC Voltage Dimmer 50/60Hz 80-240VAC for Arduino Raspberry Leading Edge Dimmer for AC Motor Pump Fan Light Heater Max 500W Pro Engineered Onboard Snubber Circuit - Compatible Worldwide

**Brand:** krida
**Price:** 1755442₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your projects with precision dimming and global-ready control!

## Quick Answers

- **What is this?** PWM AC Voltage Dimmer 50/60Hz 80-240VAC for Arduino Raspberry Leading Edge Dimmer for AC Motor Pump Fan Light Heater Max 500W Pro Engineered Onboard Snubber Circuit - Compatible Worldwide by krida
- **How much does it cost?** 1755442₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/41979542-pwm-ac-voltage-dimmer-50-60hz-80-240vac-for-arduino)

## 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

- • **Precision PWM Control:** Up to 10kHz PWM input for ultra-smooth dimming and motor speed adjustments 📶🎛️
- • **Versatile Load Handling:** Control incandescent bulbs, AC LED dimmable lights, motors, fans, heaters up to 500W 🔥💡
- • **Robust Safety Engineering:** Onboard snubber circuit and full isolation protect your MCU and high-voltage loads 🔒⚙️
- • **Plug & Play MCU Integration:** Effortlessly compatible with Arduino, Raspberry Pi, and other microcontrollers 🤖🔌
- • **Seamless Global Compatibility:** Works flawlessly worldwide with 80-240VAC and auto frequency detection ⚡🌍

## Overview

The PWM AC Voltage Dimmer is a professional-grade, globally compatible module designed for precise dimming and speed control of AC loads up to 500W. Featuring auto-detection of 50/60Hz line frequency, PWM input up to 10kHz, and an onboard snubber circuit for enhanced safety, it integrates seamlessly with Arduino, Raspberry Pi, and other MCUs. Ideal for smart home automation, industrial projects, and advanced lighting or motor control, this dimmer offers reliable, smooth performance with robust protection and easy mounting.

## Description

DIMMING LEVEL CONTROL VIA PWM SIGNAL OR VOLTAGE LEVEL For 50Hz and 60Hz AC Lines This module is designed to control the intensity of incandescent lamps, AC LED dimmable bulbs, LED Strips, Power of heating elements and AC motor speed through a micro-controller by PWM signal or voltage level. Device characteristics : PCB dimensions: 50mm x 75mm Mounting holes diameter: 3.2mm Distance between holes: vertical 68mm,horizontal 43mm Working voltage 80...240VAC Current 3A Device power supply - 5V or 3.3V Compatible for 50Hz and 60Hz AC LINE Autodetect AC LINE frequency - 50Hz or 60Hz PWM input signal up to 10kHz Input voltage level up to VCC (0-3.3V / 0-5V) 50HZ LED - show detected 50Hz AC Line 60HZ LED - show detected 60Hz AC Line Both LED flashing - when AC Line is not detected POPWE LED - indicate device power On-board Snubber circuit for triac protection, when you're controlling inductive load Low voltage side and high voltage side is completely isolated Fully compatible with any MCU, Arduino or Raspberry boards NOT appropriate to change the brightness of fluorescent lamps !!! To control LED STRIP, diode rectifier must be connected before AC INPUT. AC LOAD dimming control via firing angle method.

Review: It just works with no hiccups. - This product is very well made. It has the proper separation between the high voltage and low voltage sections for good protection. The screw connections on the high voltage are not the cheap ones I've seen on other boards and all connections are well labeled. If mounting is needed there's large enough holes for that purpose. As for controlling brightness, practically all of the LED bulbs were fine with only a few, 2 out of 8, having problems and that was at the lowest levels. Regular incandescent bulbs were fine. Control worked fine using a DC voltage of 0 to 5 volts and also a PWM signal from an Arduino Nano. While there are cheaper dimmers out there, this was well worth the money as I won't have to worry about it bursting into flames or burning out my controller. I will be buying this product again.
Review: Works very well. - Very useful for tinkerers. Dims lights and controls the fans (which is my purpose) very easily and very controlably from an MCU.

## Features

- AC Light Dimmer Module Controller ARDUINO RASPBERRY Compatible 50/60Hz 80-240VAC
- Auto Detect AC LINE frequency - 50Hz or 60Hz. Device can be controlled via variable resistor !
- Compatible with any ARDUINO, RASPBERRY and other MCU. PWM input signal up to 10kHz
- AC LOAD dimming control via firing angle method. Working voltage 80...240VAC
- AC Phase Control Circuit (Dimming Circuit) / Home Automation, School Projects, Work Related Projects. Plus can be used as regular RELAY

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y1DT1WP |
| Actuator Type | Push Button |
| Best Sellers Rank | #364,470 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #649 in Dimmer Switches |
| Brand | Krida |
| Brand Name | Krida |
| Circuit Type | 1-way |
| Color | Blue |
| Compatible Devices | ARDUINO, RASPBERRY, MCU |
| Connectivity Protocol | Cable |
| Connector Type | Screw |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Dimming and Speed Control |
| Controller Type | Arduino, Raspberry PI |
| Current Rating | 8 Amps |
| Customer Reviews | 4.8 out of 5 stars 35 Reviews |
| Item Dimensions | 2 x 2 x 1 inches |
| Item Weight | 0.6 Ounces |
| Manufacturer | Krida |
| Material Type | lead |
| Model | PWM1ChKrida |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 240 Volts |
| Operation Mode | Dimmer |
| Part Number | PWM1ChKridaK |
| Smart Home Compatibility | Smart Home Compatible |
| Switch Type | Dimmer Switch |
| Terminal | Screw |
| UPC | 687299661213 |
| Unit Count | 1.0 Count |
| Wattage | 500 watts |

## Product Details

- **Brand:** Krida
- **Connector Type:** Screw
- **Contact Type:** Normally Open
- **Current Rating:** 8 Amps
- **Item dimensions L x W x H:** 2 x 2 x 1 inches
- **Material:** lead
- **Operating Voltage:** 240 Volts
- **Operation Mode:** Dimmer
- **Switch Type:** Dimmer Switch
- **Terminal:** Screw

## Images

![PWM AC Voltage Dimmer 50/60Hz 80-240VAC for Arduino Raspberry Leading Edge Dimmer for AC Motor Pump Fan Light Heater Max 500W Pro Engineered Onboard Snubber Circuit - Compatible Worldwide - Image 1](https://m.media-amazon.com/images/I/71w2nW2I7UL.jpg)

## Questions & Answers

**Q: Is there any sample code available for this 
device?**
A: unsigned int i;

void setup()
{
    pinMode(3, OUTPUT);
}


void loop() {
  

for(i=240;i>20;i--)
{
 analogWrite(3,i);
 delay(20);
}

delay(1000);

for(i=20;i<240;i++)
{
 analogWrite(3,i);
 delay(20);
}


}

**Q: Is the triac driver zero cross**
A: Yes, triac drives via zero-cross!

**Q: Can this module dim a 150w leds street light control by the raspberry pi 3 ?**
A: Yes, by pwm signal from raspberry.

**Q: Would we be able to use this for 60VAC load?**
A: It needs 80V

## Customer Reviews

### ⭐⭐⭐⭐⭐ It just works with no hiccups.
*by W***T on October 18, 2025*

This product is very well made. It has the proper separation between the high voltage and low voltage sections for good protection. The screw connections on the high voltage are not the cheap ones I've seen on other boards and all connections are well labeled. If mounting is needed there's large enough holes for that purpose. As for controlling brightness, practically all of the LED bulbs were fine with only a few, 2 out of 8, having problems and that was at the lowest levels. Regular incandescent bulbs were fine. Control worked fine using a DC voltage of 0 to 5 volts and also a PWM signal from an Arduino Nano. While there are cheaper dimmers out there, this was well worth the money as I won't have to worry about it bursting into flames or burning out my controller. I will be buying this product again.

### ⭐⭐⭐⭐⭐ Works very well.
*by Y***. on October 21, 2025*

Very useful for tinkerers. Dims lights and controls the fans (which is my purpose) very easily and very controlably from an MCU.

### ⭐⭐⭐⭐⭐ Excellent arduino controller dimmer!
*by M***T on October 22, 2023*

I'm using this for some Halloween lighting effects. I'm replacing an older implementation that used a zero-crossing detection / phase-cutting approach which never matured beyond the breadboard and arduino. It worked pretty well but the program to control it is quite complicated and the entire breadboard setup is pretty fragile (i.e. more than once I've found something disconnected and it was a lot of brain power to get things back to working). This PWM control is SO much simpler. It lends itself really well to intuitive design of the arduino program. Bonus: the entire thing is manufactured on a nice PCB form factor (no more loose parts).

## Frequently Bought Together

- PWM AC Voltage Dimmer 50/60Hz 80-240VAC for Arduino Raspberry Leading Edge Dimmer for AC Motor Pump Fan Light Heater Max 500W Pro Engineered Onboard Snubber Circuit - Compatible Worldwide
- 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
- 3 pcs Genuine PWM Ac Programmable Light Dimmer 110V - 220V AC Module Controller Compatible 50/60hz 3.3V/5V Logic Compatible with Arduino, STM, ARM, Raspberry

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/41979542-pwm-ac-voltage-dimmer-50-60hz-80-240vac-for-arduino](https://www.desertcart.vn/products/41979542-pwm-ac-voltage-dimmer-50-60hz-80-240vac-for-arduino)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-03*