Variac Silent Fan Speed Controller The Variac Silent Auto Transformer Fan Speed Controllers are suitable for any speed controllable fan up to a full load current of 20 Amps. Ideal for in line extractor fans, hydroponic fans, kitchen extractor hoods, ventilation for the office, workshop or hobby sheds. Large range of Amp sizes available. 5 selectable voltage speeds. Protected to IP54 for humid environments. Completely eliminates harmonic fan motor hum. For 240v fans only. An exeptional auto transformer for all makes of in line extractor fan. The item “Variac Fan Speed Controller Hydroponic Grow Rooms Extractor Fans No Motor Hum” is in sale since Monday, May 15, 2017. This item is in the category “Garden & Patio\Hydroponics & Seed Starting\Other Hydroponics”. The seller is “hydroponicfans” and is located in Hinckley. This item can be shipped to United Kingdom.

• Brand: Hydroponicfans
• MPN: HF-STR