You have no items in your shopping cart.

Fan Controllers

SMScom Hybrid Controller MK2 8 AMP

1 x Mk2 SMSCom Hybrid Pro Controller 8Amp Version with 4.5m temperature sensor, 1.2m power cable & 1.6m light sensor
From £318.95

SMScom Hybrid Controller MK2 4 AMP

1 x Mk2 SMSCom Hybrid Pro Controller 4Amp with 4.5m temperature sensor, 1.2m power cable & 1.6m light sensor
From £289.95

Rhino Fan Controller

The Rhino RC-1 Fan Controller is a great option for growers with smaller fans.
From £99.95

SMSCOM 4.5amp Twin Fan Speed Controller MK2

The SMSCOM 4.5amp Twin Fan Speed Controller MK2 allows almost total control of the speed of two fans and helps maintain an optimum temperature in your room or tent.
From £94.95

SMSCOM 6.5amp SMART Fan Speed Controller MK2

The SMSCOM 6.5 Single Fan Speed Controller is an effective way to regulate the speed of one fan.
From £29.95

SMSCOM SMART MK2 Thermostat (6.5amp)

The SMSCOM Thermostat connects to the 6.5A Single Fan Speed Controller allowing you to control the temperature in your grow room.
From £37.95

Control Freak Dynamic Frequency Fan Controller

Control Freak Dynamic Frequency Fan Controllers are quality, money saving, silent contollers perfect for any indoor growing. Control Freak fans offer complete control over temperatures and air movement. Each controller has 2 plug sockets so you can have the Intake plugged in at the same time as the extraction fan if you choose to do so. Control freak enable you to change the Bandwidth (hysteresis) meaning you can set a tight bandwidth for precise temperature control or set a loose bandwidth for a smoother speed. You can be confident these controller will perform well saying with the target set temperature, there are 90 speed fan settings to choose from ranging from 10-100%. Readings are clearly displayed on a Large LCD display screen.
From £274.95

Grow Gadgets Plug In Fan Speed Dimmer

Grow Gadgets Plug in Fan speed dimmer is a handy, simple and cheap fan speed controller. This Fan Speed Dimmer is an effective way of reducing a fans speed resulting in significantly reduced noise levels. The maximum power for the Fan Controller is 300W, Therefore suitable for fans up to 200mm (8") Voltage :230V 50Hz.
From £12.95

Ecotechnics Evolution Digital Temperature & Humidity Controller

The Ecotechnics Evolution is a fully programmable, digital controller which offers excellent value for money.
From £179.95

Blauberg Silent Fan Speed Controller 1.5 AMP

Blauberg STR Speed controllers are designed to suit all Blauberg speed controllable extract and supply air fans and air handling unit. They offer a full speed control range from 40% of full fan speed upwards in 5 equal stepped voltages. Transformer based technology offers has the advance of not creating harmonic noise normally associated with electronic speed controllers. STR speed controllers do not generate any annoying humming or buzzing noise. STR speed controllers are supplied in either a plastic or steel casing with an IP54 rating. This makes them more suitable for kitchen extract systems and humid environments.
From £74.95

SMS SMART MK2 Temperature cable/Probe

The Replacement SMS Smart temperature cable is suitable for use with the SMS Smart 6.5amp MK2 Controller, without a probe it is basically a dimmer switch.
From £12.95


Our aim at Grow magic is to make growing your own crops as easy as possible. Fan controllers are just another way to make your time more efficient and the outcome more enhanced.

The purpose of fan controllers are to allow you to adjust your fan speeds in accordance to your current grow room needs. From time to time you will need to change the output of your fans to adjust temperature and humidity in the room and these controllers are ideal.

There are different types of controllers including Resistive type controllers and Voltage controllers. These fans work differently and produce different noise levels. Resistive types are known for being noisier as they work by slowing the fans down so you can change the balance of intake and extraction.

Voltage controllers are typically quieter and change the power output by using a variac to change the power supply to the fan.

If you require any advice on how to use fan controllers, or which would be best for you, please contact us!