Electric regulation device designed for use with threephase brushless motors in air pumps, water pumps, oil pumps, fans and other industrial control electric tools. Singlebutton model features and speed control 100level acceleration and deceleration with a singlebutton interface, plus a power memory function. Potentiometer governor supports 04.5V analog signals for stepless speed regulation. Compact, power design with a singlebutton potentiometer control. BLDC controller specifications Wide input voltage range: 626V. power performance in a compact form factor. Threephase brushless controller compatible with BLDC motors. No external signals required to operate; relies on builtin potentiometerbased speed regulation. The button interface enables acceleration and deceleration through a single control, with stepless speed adjustment via 04.5V analog input. Key benefits Simple integration: works from power alone without external control signals, reducing wiring complexity. Precise and smooth speed control: stepless regulation via 04.5V analog input for consistent performance. Quick ramping and repeatable starts/stops: 100level acceleration/deceleration with memory improves control during operation. Compact and versatile: power capability in a small footprint suitable for a range of threephase BLDC applications. Broad compatibility: designed for air pumps, water pumps, oil pumps, fans and other industrial control electric tools using threephase brushless motors. Performance and compatibility highlights Application scope includes diverse pumps and fans driven by threephase BLDC motors. Voltage flexibility (626V) supports various power sources and configurations. Builtin control interface emphasizes reliability and ease of use without the need for external controllers. Typical use scenarios Industrial air pump: supply power to a threephase BLDC air pump, use the singlebutton control for quick rampup and rampdown, with steady speed via the 04.5V input. Small water pump in farming or aquaculture: adjust flow precisely with analog speed control, while using the button for smooth acceleration and deceleration. Cooling or ventilation in machinery: drive a compact BLDC fan with seamless speed changes and a memory function for consistent operation after power cycles. Notes Designed to maintain consistent performance across a wide voltage range. Emphasizes a professional, trustworthy design suitable for industrial environments.