Global Air - AC Pro Step Fan Controller Size:4A trace elements and phosphorus for

trace elements and phosphorus for bud formation

healthy flowering and better fruit and flower development

Protects plants from airborne contaminants and pests

uneven lighting is one of the most common causes of slow vegetative growth

Dilute the concentrate per the label and shake well before use

Global Air - AC Pro Step Fan Controller Size:4A trace elements and phosphorus forSmooth, silent 5 step control for your AC extractor fan The Global Air AC Pro Step Fan Controller is a high quality transformer based controller for regulating AC extractor fans in grow tents and grow rooms. Built with solid state relays and digital controller technology, it moves between speeds smoothly and without the loud clicking common on older step controllers, and its robust European built transformer protects fan motors from electrical stress