Features:Suitable for ventilation in small space of 3㎡. Can be to 50mm hose/50mm PVC ;The Exhaust Fan main body is detachable and humanized design, which is easy to install and more convenient for later cleaning and maintenance.12V-DC Motor: motor, low power, fast speed and high wind preure. Quiet and Energy Exhaust Blower: Saving performance is very good, This embedded fan to run more quietly and reach low speeds without generating noise or heat.Widely used in homes, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, greenhouses and other ps- where lot of air is needed.Powerful 2"/50mm inline duct designed to produce working preures for applications that require high air flows, with low relative noise.Specifications:Power input: AC100-240V 50/60HzOutput: DC3V-12V 2AAir volume: 54m³/hDiameter: approx50mmSize:approx 130x50mm/5.12x1.97inMaterial:PVCPower 18WAir preure 570PaNoise 58dbPackage Includes:1 Set Duct Fan with Two 50mm ConnectorNote:Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks!Due to manual measurement, please allow an error of 0-1cm. Please e sure you do not mind before bidding.