TerraBloom 10" EC Inline Duct Fan with Variable Speed Controller, ECMF-250, 946 CFM, 126W

MEET OUR NEW MODEL:  Now featuring an 8-speed digital controller with numeric display. Added support for 110-220V power supply and switchable IEC socket power cord.  INDEPENDENTLY TESTED SPECS: Independently lab-tested performance verified by the Home Ventilating Institute (HVI) and Energy-Star Most Efficient certification. See product documentation tab for more details.  ENERGY SAVINGS: Built with a cutting edge brushless EC motor and dual jet type impeller, our new 10" ECMF series fans deliver 946 Cubic Feet per Minute (CFM) of Airflow using only 126 Watts.  QUIET & FULLY ADJUSTABLE: Choose from 2 included speed controllers. Analog granular type or digital with 8-speed presets and numeric screen. Adjust the motor speed from 0%-100% without creating any additional hum or background noise. Wireless and programmable thermostat speed controller add-ons available.  PWM, 0-10V CONTROLLER SUPPORT: Our EC fans support external speed controllers with popular PWM and 0-10V signal types. The fan can be connected to an external controller using a 3.5mm TRRS wire supplied with the fan. COLD ROLLED STEEL HOUSING: Resists accidental damage, harsh elements and reduces maintenance in demanding applications such as ventilation of grow tents, gardens, farms, crawl spaces, attics, etc. COMPACT: Only 12.13" (L) x 7.87" (W) x 8.94" (H). Ideal applications with minimal space available. Installation hardware (screws and anchors) included in set ETL LISTED WITH 2 YR WARRANTY: ECMF series fans are ETL listed and Conform to UL standard 507, Certified to CSA standard C22.2 No 113. Covered by 2-year warranty PACKAGING DIMENSIONS: INDIVIDUAL FAN BOX - 14 x 10.5 x 12.5 Inches, 10.5 Lb.  MASTER CARTON (2 PCS) - 27.2 x 13.8 x 11 Inches, 23 Lb.