100mm Inline Duct Fan with Variable Speed Control Quiet EC Motor, 350 m/h AirflowPowerful inline duct fan with flexible speed control, suitable for ventilation in grow tents, vertical farming, air filtration, and heating or cooling systems. Designed for quiet operation and energy efficiency with an EC motor and PWM technology.Key Features:Flexible Speed Control: Built-in variable controller allows speed adjustment from 0% to 100% with no background noise or low-speed hum.Quiet Operation: Operates with minimal noise (32 dBA) using EC motor and PWM control for precision performance at all speeds.High Performance:Tube Diameter: 100mmAirflow: 350 m/hPower: 40WNoise Level: 32 dBAStatic Pressure: 298 PaEnergy Efficient: EC motor offers high efficiency and reduced power consumption, helping to lower long-term operating costs.Durable Construction: Made from sturdy black ABS plastic for long-lasting use.Easy Installation: Can be installed with ceiling hooks or cable ties in grow tents and other spaces.Applications:Grow tents and indoor gardeningHeat and cooling distributionAir filtration and commercial dryingCreating pressurized or ventilated environmentsOdor and smoke managementDrawing in fresh air from outdoors