Executive Summary - Specification and Supply PositionTL;DR - The Mistairhome WL-OHF01C (PRO) is a Brushless three-phase BLDC, sensorless drive unit running to 12000 RPM, delivering 7.8 m/s at 150 mm and 41.6 CFM; the pack is 4600 mAh lithium polymer giving 10.6 hours on the lowest step and recharging in 2.6 hours from empty on 5V/2A; speed control is 5 fixed steps plus stepless on the top step; it measures 34.6 dB at 1 m in operation, draws 8 W from USB-C 5V/2A, weighs 216 g,···