Control Freak Dynamic Frequency Fan Controller

As low as £255.00
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  • Digital, variable speed, multiple, fan controller
  • Easy-to-Use LCD display
  • Runs AC fans with absolutely no buzzing
  • Temperature controlled
  • Available in 3A, 7A or 13A units
  • Plug n Play

The Latest in Digital Control for your Fans

A new slicker more controllable range of silent fan controllers that can run your AC extraction at super low speeds with absolutely no associated noise from the fans, thanks to the way the electrical signal is chopped through electrical circuitry rather than resistors.

These controllers also have a min-max fan speed adjustment from 10-100% for both the Air in and the Air out, this gives a bigger advantage over the SMS Hybrid controller as the minimum run speed is 20% and will enable lower fan speeds which means less noise when below the set temp.

The Control Freak is a frequency fan controller that will silently control fan speed operation with the latest digital temperature sensing technology available in 3amp, 7amp and 13amp versions that will control both extractor and intake fans very accurately.

Supply Voltage (All units): 220-240 ~ 50Hz so they're perfect for use in the UK.


Product Code Power Cable Length (m) Outlet Sockets (UK 3-Pin) Maximum Total Load (A) Sensor Cable Length (m)
FC3A 1.25 2 3A Total 4.5
FC7A 1.25 2 7A Total 4.5
FC13A 1.25 2 13A Total 4.5

Product Code Dimensions (mm)** Gross Weight Netweight
FC3A 210 x 170 x 148 2.06 1.82
FC7A 210 x 170 x 148 2.16 1.92
FC13A 210 x 170 x 148 2.26 2.06

When the Control Freak Frequency Controller is used to control more than one fan, each fan will run at the same speed. E.g. if you set the frequency to be 50%, both fans will run at 50% of their maximum speed.

The amount of air movement is dependent on the fan size. To achieve negative pressure inside the grow room we recommend that you run a smaller intake fan than extractor fan.


Temperature - The temperature can be displayed in °C or °F and can be changed at any time by using the °C & °F buttons.

Manual / Auto - The unit can be switched to Manual or Auto mode. This can be changed at any time by using the Manual & Auto buttons.

Manual Mode

In manual mode the fan speed is controlled manually by the user settings. The controller will maintain the fan's power setting while on.

When in manual mode, the user must set the Fan Speed setting for all connected fans and can be adjusted from 10-100% using the + & - buttons when 'fan speed' is selected. The controller will then maintain the fan speed at the user set %.

Automatic Mode

In auto mode, the connected fans speed is controlled automatically to achieve the required room temperature. The fans will ramp up or down to maintain a stable environment.

In Auto mode the user must set:

Temperature: This is the required room temperature and can be adjusted from 10-55 °C (50-131°F) using the + & - buttons

Min Fan:The slowest the fan will go when regulating your temperature

Max FanThe fastest your fan will go while regulating temperature

Customer Questions
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Next Day Delivery

Our UK Mainland delivery service is provided by Parcelforce Worldwide.

NOTE: For anyone outside of the UK (i.e. Republic of Ireland and the EU) you are free to arrange your own courier service. To order from us using your own courier, complete your purchase from our website, and select "Collect from our Warehouse — Chigwell". This is where you can arrange your own courier to collect your item(s) from. Address details are available on the Contacts page.

Standard UK mainland orders over £50.00 are eligible for a free standard next working day delivery service (Mon – Fri)*.

  • *Free delivery includes orders up to, and not exceeding, 30kg, that fit in a single, standard shipping box.
  • *Free delivery may exclude orders containing one or more large volume items. Examples of large volume items are, but are not limited to, bags of media (clay balls, perlite, soil etc.).
  • *Free delivery excludes Garden Power Tools.
  • *Large items are sent via a standard 48L (48 hour large) service. Large items take from 2 working days to arrive.

Where possible, orders received by 2:30pm Mon – Fri are dispatched the same day. (*Excluding Garden Power Tools).

Where possible, Garden Power Tool orders are dispatched the same day when received by 11:00am Mon – Fri. Orders after 11:00am are usually dispatched the next working day

UK mainland orders after 2:30pm Mon - Fri are subject to next working day dispatch:

  • For example, orders after 2:30pm on a Friday are dispatched on the next working day, usually a Monday.

UK Mainland Pallet deliveries are charged separately per pallet. They are usually delivered in 2-3 working days. Please contact us for the latest cost price.

    Our shipping providers terms and conditions limit our ability to send some products internationally. See our list of restricted items.

    All prices shown below are per parcel with a maximum weight of 30 kg per parcel. Items over 30 kg are split into multiple boxes and charged per box.

    Future Garden are not liable for any additional fees that may be incurred. Any unexpected costs must be paid by you (the customer).

    Delivery services provided online are estimates. There may be unforeseen delays with your order, especially around our busiest time of year. Very busy periods can see very high volumes of parcels being collected, processed and delivered. If you have a special delivery requirement, please contact us via email - before placing your order.

    UK Mainland

    Standard Next Working Day (Orders over £50 <30 kg) FREE
    Standard Next Working Day (Orders under £50 max. 30 kg per parcel)* £6.95
    Standard 2-3 Working Day (Orders under £50 max. 30 kg per parcel)* £4.95
    Pallet Delivery £70.00

    Isle of Wight

    Next Day Service £8.95

    Northern Ireland

    Two Day Service £18.95

    Isle of Man & Scilly Isles

    Two Day Service £20.95

    Scottish Highlands & Islands

    Two Day Service £16.95


    Sorry, no online quotes are available for orders outside of Europe. If you would like to place an order for delivery outside of Europe, email us directly and we can prepare a bespoke quote for you based on the weight, dimensions and destination country for the most accurate cost and quickest delivery times to you.

As per the Consumer Contract Regulations June 2014, you can return goods and receive a full refund under the following conditions:

  • You have had the goods delivered within seven working days of delivery from Future Garden Ltd, this starts from the day after the goods have been signed for.
  • The items are unopened and in the original condition as when they were delivered to you.


  • The items have developed a fault during standard use.
  • The items are within the manufacturer's warranty period.

Simple checks

  • Please ensure that any parcels delivered are intact and free from damage and unopened, if they appear to show any damage please make a note when signing for the goods, alternatively you can refuse delivery of these items, however only full refusal if multiple parcels will be accepted, in the unlikely event this occurs please contact us asap on 020 8502 7722 or by email
  • Please check all items once unboxed to ensure that they are not damaged and are fully functioning, if this is not the case please ensure you notify us as soon as you can, or within the given returns policy time frame, on 020 8502 7722 or by email  we will then arrange suitable collection and replacements where necessary.
  • If any items appear not to be functioning as expected, do not attempt to fix or tamper with any products, this could affect your statutory rights, please notify us on 020 8502 7722 or by email and we will arrange a suitable replacement.
  • If you notice any irregularities with your order, please notify us as soon as possible or within 7 working days, on 020 8502 7722 or by email will endeavour to correct and refund where possible. 
  • You can return any unwanted items, you can return the item(s) to us unopened and intact in a re-sellable condition within 14 working days after the day of receiving the goods, we are unable to accept any goods back that have been opened or the seal(s) have been broken or have been damaged, unless reported as damaged in transit, you can contact us on 020 8502 7722 or by email