This highly efficient fresh air exchange fan prevents CO2 build-up, promotes air flow, and allows you to set up a positive or negative pressure system in your BoomRoom. The on-unit controller adjusts fan speed with a simple turn of the dial and features an extra-long cord to allow for flexible fruiting chamber placement. The FAE Fan is designed with a metal stand for floor placement and should be connected to the port located at the bottom of your BoomRoom tent. Note: Ducting clamps and "S" ring not included. Specs: Power: 40W Input voltage: AC110~220V Frequency: 50/60Hz Speed: 2600 RPM Airflow: 205 CFM Noise: 28dB