Wide voltage BLDC controller: input range 626V, power output in a compact size, featuring a singlebutton potentiometer for easy control. Sensorless threephase brushless control: this driver is a threephase brushless Hall (sensorless) control board, enabling normal operation of compatible motors. Versatile regulation for threephase brushless motors: specifically designed for air pumps, water pumps, oil pumps, fans, and other industrial control tools that use threephase brushless motors. Singlebutton mode with advanced control: supports 100level acceleration and deceleration switching, power memory function, and a potentiometer governor mode. It also accepts 04.5V analog signals for stepless speed regulation. Applications: Industrial air pump, water pump, or oil pump systems requiring smooth starting, stopping, and adjustable speeds. Ventilation and cooling fan setups where precise speed control and energy efficiency are important. Automated machinery or tooling that uses threephase brushless motors and benefits from either the singlebutton or analog (04.5V) speed control options.