Features:<br /><br />-Powerful and high efficient performance.-High-quality steel fan blade・ durable and powerful than plastic fan blades.-Lightweight and practical・ operates as smooth as any fan we've come across-Extremely quiet・ the fan blades are quietly designed with a working decibel less than 60dB.-Use special fully enclosed roller motor・ long usable life-Environmental protection and no pollution-A Ideal choice for ventilation of grow room・ or used in conjunction with a carbon filter for odor control.<br /><br />Specification:<br /><br />Material: Steel<br /><br /><br />Voltage:220V 50Hz<br /><br /><br />Power:20W<br /><br /><br />Revolving Speed:2800R/Min<br /><br /><br />Air Volume:140m /H<br /><br /><br />Diameter:100mm<br /><br /><br />Height: 75mm<br /><br /><br />Color: White+Silver<br /><br /><br />Quantity:1pc<br /><br />Package Included:<br /><br />          1 x Exhaust Blower(Other accessories are not included!)<br /><br /><br /><br />Note:<br /><br />Please allow 1-2mm differences due to manual measurement・ thanks!<br /><br /><br />Item<br /> color displayed in photos may be showing slightly different on your <br />computer monitor since monitors are not calibrated same. <br /><br /><br /><br /><br /><br />