Category Archives: Guides

What’s the difference between an AC and EC Fan?

What’s the difference between an AC and EC Fan? An essential part of an extraction

Vapour Pressure Deficit: The Importance of Humidity

The Importance of Humidity: Vapour Pressure Deficit   Temperature and humidity play a large role

Transition from HPS to LED

Transition from HPS to LED – A Guide from Global Air Supplies LED lighting is

How to Choose a Fan Controller

There are two types of fan on the market: AC and EC. Each requires its

What is a fan motor?

Standard electric motors turn electricity into rotational power. They work by energising electromagnets that generate

How to Calculate a Ventilation System

Environment is everything for indoor cultivation, starting with your ventilation system. Undoubtedly the most important