The BLDC Driver 100W - 1000W features include: Operation: Sensored or Sensor less (120 degree Trapezoidal Current Control): Motor Type: DC Brushless Motors Input Voltage:35V to 120V DC 230V AC Rated Power:100W to 1000W Dimension: (1).Diameter: 100mm x 170mm, (2) Available in several PCB Assembly versions or as a complete unit with heat sink and cover.