This WhisperGreen model features built-in intelligence called SmartFlow Optimum CFM Technology. This unique electronic-brain lets the fan do what was once thought to be impossible: perform at a constant CFM regardless of elbows and other factors that might hinder performance. Basically, when a WhisperGreen fan faces static pressure, its speed is automatically increased to ensure that the desired CFM is actually achieved. This allows the fan to perform as rated and makes for easier sizing because the specifiers no longer has to worry as much about compromising the fan's performance.Smartaction motion sensor Variable speed control Delay timer Quiet motor means quiet operation Bright ideas Energy star qualified for energy savings User-friendly installation Tired of cold air coming through your ventilation fanBlower Wheel Type: Sirocco California Title 24 Compliant: Yes Color Temperature (Kelvin): 3,500 CustomVent Variable Speed Control: Yes Depth: 16-3 4 Duct Diameter (inches): 6 Energy Star Qualified: Yes Grille Size (inches sq.): 13 Height: 12 High Low Delay Timer: Yes Lamp Color Rendering Index: 84 Lamp Watts: 32 Mfg in ISO 9001 Certified Facility: Yes Motor Type: DC Mounting Opening (inches sq.): 10-1 2 Night Light Lamp Watts: 4 Rated Life (hours): 10,000 SmartAction Motion Sensor: No SmartFlow Optimum CFM Technology: Yes Thermal Fuse Protection: Yes Type of Motor Bearing: Ball UL tub Shower Enclosure: Yes Washington State VIAQ Code: Yes Weight: 14.0 Width: 14-1 2
