1. High Performance Motor The duct fan adopts 6-stage variable frequency brushless EC motor that produces 160CFM strong airflow using 18Watt/hour only.
2. Stepless Speed Controller The included PWM speed controller with 5m connection cable can accurately adjust the fan's speed from 0% to .
3. Low Running Noise The fan will not produce additional noise and hum when running from 0% to maximum speed.
4. Aluminum Outer Case Better pressure and durability, low maintenance costs, suitable for harsh environments.
5. Premium Material The turbine head is made of superior PBT material, not only environmental but also fire prevention.