Variispeed Fan Speed Controller

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Standard Delivery £6.95*
Free Delivery - orders +£65 Free Delivery - orders +£65
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Variispeed Fan Speed Controller


The Variispeed Fan Speed Controller is a cost effective and simple way to manually adjust the airflow of your intake or extraction fan to help your grow room maintain its optimum temperature at all times.

Setting up the Variispeed Fan Speed Controller couldn’t be easier, just plug your fan into the device, then plug the device into the power supply or timer and that’s it, there’s no need for complicated equipment or probes to monitor the temperature.

Adjusting the airflow on the Variispeed Fan Speed Controller is simply done using the dial on the front, turn it down to reduce the airflow, ideal when the ambient temperature is cooler, or when lights are off, meaning warm air will stay in the grow room longer, or increase the airflow on hot days so warm air will be exchanged quicker and both will help you to maintain a perfect temperature in your grow room, all year round.

The measurements of this stylish unit are 53mm x 63mm x 98mm and it can run a fan of up to 300w or 8”/200mm in size, but please check the power rating of your fan before use.


  • Simple and cost effective way to control the speed of a single fan
  • Manually adjust airflow to desired level
  • Easy to set up and use, additional temperature probes are not required
  • For use with fan ratings of up to 300w or 8”/200mm

So if you're looking for a cheap and easy way to manually control a single intake or extraction fan, then look no further than the Variispeed Fan Speed Controller.

Delivery & Returns
Free Delivery
We are pleased to offer free standard shipping to UK Mainland on all orders over £65.00 *Heavy item surcharges are still applicable.
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or email customer service and we can arrange a free collection.
Plain Packaging
All parcels, no matter how big or small, are dispatched in plain packaging using black wrap that's secured using 'fragile' tape.
How to Pay
Credit / Debit Cards
We accept all major credit and debit cards. Please note: When paying by credit card we can only ship to the card statement address.
Simply select this option at checkout if you prefer to pay through PayPal. Please note: When paying by PayPal, we can only ship items to the account owners confirmed address.
Bank Transfer
Select the option for Bank Transfer at checkout if you wish to receive your item anywhere within the UK. Please use your order number as payment reference.
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Click & Collect
Collect your online orders in as little as under an hour*! Simply pay online, choose your store & collect for free! Available from Manchester & Huddersfield (*subject to stock availability).
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