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iPower Variable Fan Speed Controller Adjuster Cordless for Duct Inline Exhaust Vent Blower, HVAC, 350W, 1 Pack

4.4 4.4 out of 5 stars 2,893 ratings

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Purchase options and add-ons

Controller Type
Button Control
Included Components
fan speed control

About this item

  • iPower Fan Speed Controller will correctly adjust the speed of your duct and inline fans.
  • Design: durable 3-pole grounded plug construction, simple box design to stay out of the way and keep cords tangle-free.
  • One control switch for 3 settings: variable speed, OFF, HIGH, MED, LOW. Built-in grounded control outlet. Suitable for all duct and inline fans.
  • Specifications: current capacity: 3 Amps; volt: 120 AC; watts max: 350W; dimensions: 3.625in(L)*2.215in(W)*2in(H).
  • Note: to avoid the risk of burning out the fan motor, controller does NOT adjust below 50%. This controller is not suitable for shaded pole motor and brushless motor fan.

Customer ratings by feature

Easy to install
4.8 4.8
Easy to use
4.5 4.5
Light weight
4.5 4.5
Noise level
4.4 4.4

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iPower

iPower Variable Fan Speed Controller Adjuster Cordless for Duct Inline Exhaust Vent Blower, HVAC, 350W, 1 Pack


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From the manufacturer

variable vent fan speed adjuster
inline fan carbon filter ducting Fan filter ducting grow light kit
6" Inline Fan 6" Carbon Filter 6" x 25' Ducting Fan Filter Ducting Combo 1000W Grow Light Kit
Customer Reviews
4.4 out of 5 stars
556
4.5 out of 5 stars
1,364
4.6 out of 5 stars
839
Specifications: 442 CFM 1050+ IAV Australia Charcoal Flexible Length 6" inline fan + carbon filter + ducting HPS + MH Bulbs; Cool Tube Reflector

Product Description

Tired of your critical equipment hogging valuable space and having messy, tangled cords? Your solution is the Fan Speed Controller for duct and inline fans. This unit is ultra-compact and plugs directly into an outlet. You can easily adjust your fan's speed with a simple turn of a knob. iPower's Fan Speed Controller is an affordable and effective tool to improve the efficiency of your growing environment.

Features:
- Knob Control with 4 options: Off, Low, Medium, and High
- Ultra-compact and plugs directly into an outlet - no messy wires!
- Plug-and-play for easy installation
- 1 Mounting Tab for wall mounting

Product guides and documents

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,893 global ratings

Customers say

Customers like the performance and quality of the fan. For example, they mention it works perfectly, and is well built. Customers are also impresseded with the ease of use, and adjustability. That said, opinions are mixed on the value, speed control, noise, and temperature.

AI-generated from the text of customer reviews

179 customers mention131 positive48 negative

Customers like the performance of the fan. They mention that it works perfectly, doesn't feel cheap, and works well to control an inline duct fan. The quality of the product is good and has no issues. It's easy to plug in and all 3 modes work perfectly. Customers also say that it's a very useful item when a little speed adjustment is needed.

"...1 speed fan that i use to blow the humidifier mist into the room, works pefectly. In closing, it might depend on the fan you want to use...." Read more

"Got one with a 6in inline, worked well to control it solo or together with it and another 6in inline, controls both fine...." Read more

"Works great" Read more

"Does not work on my fan" Read more

68 customers mention60 positive8 negative

Customers like the quality of the electric fan. They say it is well-built, works excellent, and is impressed with the solid clicks and movements. Some customers also say that the product is better than expected and is solidly built.

"Item is much better than I expected. I was expecting it to have just a few clicks for speed adjustment. Instead has a rheostat knob with no stops...." Read more

"...to control it solo or together with it and another 6in inline, controls both fine. Purchased another works just as good. Would buy again." Read more

"great product, works good to reduce noise for my fan" Read more

"...fan motor speed controllers but this one has the best control on small squirrel cage blowers, the speed range is wider and doesn't make the fan buzz..." Read more

28 customers mention28 positive0 negative

Customers find the electric fan straightforward to install and use. They say it's simple to splice the wires and make it work. Customers also mention that the quality material is easy to hook up.

"...I bought it for an inline fan that was far to fast. It was simple to use and works effectively years later. Great purchase...." Read more

"This was a super easy add on to my wood stove blower. Just plug it in and it works, no wiring necessary." Read more

"...This is a very easy triac/diac circuit to duplicate if you are so inclined...." Read more

"...box so I took it out of the box it came in and it was super easy to splice the wires and make it work. This works great." Read more

11 customers mention8 positive3 negative

Customers like the adjustability of the fan. They mention it has a good adjustment range, is excellent for adjusting an exhaust fan, and allows them to fine tune their air flow. Some say the fan fits perfectly on top of the filter and the controller helps dial it in much better.

"...The fan fits perfectly on top of the filter, which is my favorite type of carbon filter setup...." Read more

"Probably excellent for adjusting an exhaust fan, but beware with a fan that's regularly plugged/unplugged from the wall...." Read more

"Only adjustable to low and high, medium setting is still just on low. Works just not quite as advertised." Read more

"...My window fan on low can drown out the sound. Adjustable, clicks when off." Read more

61 customers mention32 positive29 negative

Customers are mixed about the speed control of the fan. Some mention it's good, while others say it barely controls the speed. The speed to dial ratios are a little off, and the product doesn't provide much variable speed.

"...Instead has a rheostat knob with no stops. I am able to turn the knob slowly until the precise fan speed I desire is obtained...." Read more

"Fan turns off at halfway point but it does slow the fan down. I had to put a mark on the face panel just before it turns off." Read more

"...This controller was the cheap/easy way to slow down the fan. My only gripe is with the adjustment range...." Read more

"Hooked this up to a couple of different fans and it barely controls the speed" Read more

59 customers mention35 positive24 negative

Customers are mixed about the value of the electric fan. Some mention it's a good product for the price, while others say it'll be a big waste of time and money.

"No heat build-up. Smooth operation. Great price, very pleased with purchase. BTW, nobody trusts a 5 star review. 4 is my 5" Read more

"...You just use it as a outlet. It works, but it is just not as ideally as what I expected. When it is on low level, the fan speed is still high for me...." Read more

"...It was simple to use and works effectively years later. Great purchase. Definitely performs well and does as advertised...." Read more

"...Certainly not enough to be effective in my situation.Not worth returning, either because Amazon will charge me, even though I received an item..." Read more

32 customers mention13 positive19 negative

Customers are mixed about the noise of the fan speed controller. Some mention that it slightly reduces fan noise, while others say that it causes a loud fan hum.

"...fan is attached to the rafters under my kitchen floor, it made quite an annoying hum, like a hive of bees...." Read more

"...No hum or overheating at all. Highly recommend this speed controller." Read more

"I should have read the reviews because this causes a loud fan hum from the fan. My fan is a simple 12" exhaust fan. Returning switch" Read more

"...Even at full blast the sound is no louder than one of those fans that sit on the floor made of metal and a bar to help it stand up...." Read more

11 customers mention7 positive4 negative

Customers are mixed about the temperature of the fan. Some mention it runs quietly and doesn't cool the room down too much, with no heat build-up. It's perfect for controlling temperature in an indoor garden with inconsistent outdoor weather. However, others say that it seems to get way too hot for their liking, and the housing melts.

"No heat build-up. Smooth operation. Great price, very pleased with purchase. BTW, nobody trusts a 5 star review. 4 is my 5" Read more

"...a day or so and noticed a burning smell, went over to see the housing was melting. DO NOT BUY." Read more

"...Even at 50%, it slows my fan enough to run quietly and not cool the room down too much...." Read more

"...I’ve used this for several days now at various speeds and the box doesn’t heat up at all.I’m very happy with this purchase." Read more

Works as expected
4 Stars
Works as expected
The only issue I see is that the way it is configured doesn't give you a lot of flexibility on installation. I have my exhaust fan connected to it and then to my thermostat - so it can't go flat against something. But I worked around it. Other than that design issue, it works as expected.
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Top reviews from other countries

Hugues Charron
5.0 out of 5 stars Good product. Quick shipping. Reliable!
Reviewed in Canada on September 4, 2023
Peter
5.0 out of 5 stars Amazing Product. Works Perfectly and High Quality Build
Reviewed in Canada on August 15, 2021
One person found this helpful
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Jeff
5.0 out of 5 stars Works as it should
Reviewed in Canada on January 12, 2024
Client d'Amazon
4.0 out of 5 stars Très bon produit
Reviewed in Canada on February 22, 2024
Amazon Customer
5.0 out of 5 stars good
Reviewed in Canada on February 7, 2024