brand new and superb OOTDTY Features: Strong power, double ball bearings, longer life. The fan casing is fabricated from galvanized steel and the impeller is fabricated from stainless steel. The motor is supplied with slide bearings. Both delicate and step speed management is performed with the thyristor or autotransformer controller. Several followers would be to controller in for case the complete energy and working current don't the rated controller values. Combined delivery and extract ventilation tips for various premises where high at comparatively low substances resistance is required. Inline duct fans assist filter out air pollution such as exhaust, fumes and odors. easier and as well create a cleaner surroundings for your plants. Multi-use fan is superb for indoor growing, grow tents, greenhouses, indoor gardens, otherwise you wish to assist an air ventilation system. Specification: Power: 25W Frequency: 50Hz Rotating speed: 2600r/min Material: Iron Dimensions: 9/3 Color: White silver Quantity: 1 Pc Note: 1 enable 0-1cm error due to handbook measurement. pls make sure you don't intellect before you bid. 2 to the difference between varied monitors, the picture may not replicate the particular color of the item. Thank you! Package Includes: 1 Duct Air Ventilator