---
product_id: 4518324
title: "AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects"
brand: "ac infinity"
price: "£17.46"
currency: GBP
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.co.uk/products/4518324-ac-infinity-fan-speed-controller-for-100-to-125v-ac
store_origin: GB
region: Great Britain
---

# 50W power output 6 feet cord length 100-125V AC input/output AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects

**Brand:** ac infinity
**Price:** £17.46
**Availability:** ✅ In Stock

## Summary

> 🌬️ Take control of your airflow — because your projects deserve the perfect breeze!

## Quick Answers

- **What is this?** AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects by ac infinity
- **How much does it cost?** £17.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/4518324-ac-infinity-fan-speed-controller-for-100-to-125v-ac)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Plug & play simplicity:** Single connector design and included wall-mount screws for quick, secure installation.
- • **Robust & reliable build:** Durable copper contacts and RoHS-certified components ensure long-lasting performance.
- • **Whisper-quiet operation:** Reduce noise dramatically by adjusting fan speed to your environment’s needs.
- • **Precision airflow control:** Easily dial in the perfect fan speed to balance cooling and quiet operation.
- • **Universal AC compatibility:** Works seamlessly with 100-125V AC axial muffin fans for versatile DIY projects.

## Overview

The AC Infinity Fan Speed Controller (AI-SC72A) is a compact, wall-mountable device designed to regulate the speed of 100-125V AC axial muffin fans. With a 50W power rating and a 6-foot cord, it offers precise manual control over fan speed to optimize airflow and noise levels for a variety of DIY cooling and ventilation applications. Featuring a single 2-pin connector and durable copper contacts, it ensures easy installation and reliable performance, making it an essential upgrade for any professional or hobbyist seeking efficient, quiet cooling solutions.

## Description

Designed to control the speed of AC axial muffin fans rated at 100 to 125V AC. Adjust your fan’s speed to optimize the airflow and noise for your application. Features connectors that can be attached to one muffin fan’s terminals. Includes wall-mount screws so you can secure the controller onto a flat surface. Length: 6 Feet | Power: 50W or 0.4 A | Input: 100 to 125V AC | Output: 0 to 125V AC Product Description The fan speed controller is designed for AC Infinity AXIAL series fans and other muffin AC fans rated 100 to 125V AC to enable speed control. Axial muffin fans are used for DIY projects requiring cooling and ventilation, with sizes including 80mm, 92mm, 120mm, and 172mm. The cord length is 6 feet. The cord contains one fan connector which can be attached to one muffin fan with 2-pin terminal connectors. Compatible fan’s that do not have terminal connectors may need to be hardwired. Speed controller range is limited on fans that have a capacitor or high wattage rating. The power plug can be plugged into standard wall outlets. Includes optional wall-mount wood screws to secure the controller onto a flat surface. Speed Controller The inline variable-speed controller can turn the fan and off, as well as control its speed. Easily turn the knob to optimize the fan’s airflow and noise levels for your application. Or simply use it respond to situations that may require additional or less air movement. Applications The fan controller can be used with any AC Infinity AXIAL series fans and other muffin AC fans rated 100 to 125V AC. Axial muffin fans are popular in a wide range of cooling, heating, and air circulation applications. This includes various DIY projects for doorways, room-to-room, fireplaces, stoves, and cabinets. Product Identification Manufacturer AC Infinity Product Name AC Fan Speed Controller, Single UPC Code 819137020382 Product Model AI-SC72A Product Dimensions Total Dimensions 2.9 x 1.5 x 1.2 in. ( 7.5 x 3.8 x 3 cm) Total Cord Length 72 Inches (6 Feet) Fan Connector to Controller 36 Inches (3 Feet) Controller to Power Plug 36 Inches (3 Feet) Product Performance and Technical Specs Fans Controlled 1 Voltage Input 100-125V AC 50/60 Hz Voltage Output 0-125V AC Power 50W Amperage 0.4A Cord Rating SPT 105°C 300 Volts Fan Connectors Terminal 2-Pin Power Plug NEMA 1-15P Power Plug RoHS Cert. (Whole Product) PDF

Review: Superbly robust, effective and quiet - I searched a good deal for a fan I could use at 18V or more, had trouble finding something to suit my parameters. Then I stumbled across the AC Infinity fan with the control box... VOILA! Problem solved! My power supply was having issues running my project AND my fan, this completely solved the issue by having the fan run on AC power from the wall, with a control box to regulate fan speed and thereby control my projects thermal issue and also keep it on the down low noise wise. I have to say, the robust aluminum construction is welcome, and the noise level, well, What Noise? It's so much quieter than the name brand computer fan I had tried that I'm "blown" away! :) Great work! Excellent fan, exactly what I needed. Thank You!
Review: Good purchase! - Purchased a fan to install in a piece of furniture that we are using as a tv stand / stereo component cabinet. Needed the fan for heat buildup, but the fan is not tiny and was running full steam and quickly realized I should have purchased the controller when I got the fan. Controller arrived quickly, took less than a min to install and so far has been keeping the fan at a low rotation and it is therefore much quieter (can't hear the fan at all unless you get very close). Very happy with the purchase and have had no issues with variance in speeds as others have mentioned...mine has been holding steady for months now.

## Features

- Designed to control the speed of AC axial muffin fans rated at 100 to 125V AC.
- Adjust your fan’s speed to optimize the airflow and noise for your application.
- Features connectors that can be attached to one muffin fan’s terminals.
- Includes wall-mount screws so you can secure the controller onto a flat surface.
- Length: 6 Feet | Power: 50W or 0.4 A | Input: 100 to 125V AC | Output: 0 to 125V AC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00809BQZG |
| Actuator Type | Rotary |
| Best Sellers Rank | #421 in Computer Case Fans |
| Brand Name | AC Infinity |
| Circuit Type | 1-way |
| Color | Black |
| Connectivity Protocol | X-10 |
| Connector Type | Screws |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Controller Type | Mechanical knob |
| Current Rating | 0.4 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,122) |
| Item Weight | 0.01 Ounces |
| Manufacturer | AC Infinity |
| Material Type | Copper |
| Model | AI-SC72A |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 125 Volts |
| Operation Mode | manual |
| Specification Met | RoHS |
| Switch Type | Rotary |
| Terminal | 2-pin |
| UPC | 819137020382 075239566160 |
| Unit Count | 1 Count |
| Wattage | 50 watts |

## Product Details

- **Brand:** AC Infinity
- **Circuit Type:** 1-way
- **Connector Type:** Screws
- **Contact Type:** Normally Open
- **Current Rating:** 0.4 Amps
- **Material:** Copper
- **Operating Voltage:** 125 Volts
- **Operation Mode:** manual
- **Switch Type:** Rotary
- **Terminal:** 2-pin

## Images

![AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 1](https://m.media-amazon.com/images/I/61wNZeYVULL.jpg)
![AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 2](https://m.media-amazon.com/images/I/61ojKYc2U3L.jpg)
![AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 3](https://m.media-amazon.com/images/I/41Jl-zwHZhL.jpg)
![AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 4](https://m.media-amazon.com/images/I/61FqRTNYthL.jpg)
![AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 5](https://m.media-amazon.com/images/I/61T9gngmUCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superbly robust, effective and quiet
*by D***M on November 23, 2018*

I searched a good deal for a fan I could use at 18V or more, had trouble finding something to suit my parameters. Then I stumbled across the AC Infinity fan with the control box... VOILA! Problem solved! My power supply was having issues running my project AND my fan, this completely solved the issue by having the fan run on AC power from the wall, with a control box to regulate fan speed and thereby control my projects thermal issue and also keep it on the down low noise wise. I have to say, the robust aluminum construction is welcome, and the noise level, well, What Noise? It's so much quieter than the name brand computer fan I had tried that I'm "blown" away! :) Great work! Excellent fan, exactly what I needed. Thank You!

### ⭐⭐⭐⭐⭐ Good purchase!
*by J***G on January 3, 2019*

Purchased a fan to install in a piece of furniture that we are using as a tv stand / stereo component cabinet. Needed the fan for heat buildup, but the fan is not tiny and was running full steam and quickly realized I should have purchased the controller when I got the fan. Controller arrived quickly, took less than a min to install and so far has been keeping the fan at a low rotation and it is therefore much quieter (can't hear the fan at all unless you get very close). Very happy with the purchase and have had no issues with variance in speeds as others have mentioned...mine has been holding steady for months now.

### ⭐⭐⭐⭐ Works best 1/2 and up
*by T***N on January 27, 2024*

I am using this with a 2060 fan by the same manufacturer. It works the at 1/2 speed and up as below that the fan gets a little warm and a little noisy. The speed control is rated at 100w on the decal on the back which is different then the amazon specs. Perhaps it works better with a lower wattage fan. It still worked for my application though.

## Frequently Bought Together

- AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects
- AC Infinity AXIAL 1238, Muffin Fan, 120V AC 120mm x 38mm High Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects
- AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-23*